30 Gluten-Free Hamburger Meat Recipes

Living a gluten-free lifestyle doesn’t mean you have to miss out on delicious and satisfying meals made with ground beef. This collection of 30 gluten-free hamburger meat recipes is here to prove that you can enjoy all your favorite comfort foods without the gluten. From hearty skillet meals and flavorful soups to creative casseroles and juicy burgers, these recipes are designed to be both delicious and completely gluten-free.

We’ve carefully crafted each recipe to ensure that all ingredients are naturally gluten-free or can be easily substituted with gluten-free alternatives. We’ll guide you on how to choose gluten-free sauces, breadcrumbs, and pastas, so you can cook with confidence and enjoy every bite.

Gluten-Free Skillet Meals

1. Gluten-Free Beef and Broccoli

A classic stir-fry made gluten-free by using tamari instead of soy sauce. It’s a quick and easy meal that’s perfect for a busy weeknight.

Prep time: 15 minutes
Cook time: 20 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1 tbsp sesame oil
• 4 cups broccoli florets
• 1/4 cup gluten-free tamari
• 2 tbsp honey
• 1 tbsp gluten-free cornstarch

Instructions:

1. Brown the ground beef in a large skillet or wok. Drain excess fat.
2. Add the broccoli and stir-fry for 5-7 minutes.
3. In a small bowl, whisk together the tamari, honey, and cornstarch. Pour the sauce over the stir-fry and cook until the sauce has thickened.

2. Mexican Beef and Rice Skillet

This one-pan meal is packed with flavor and is naturally gluten-free. It’s a quick and easy dinner that the whole family will love.

Prep time: 10 minutes
Cook time: 25 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1 onion, chopped
• 1 bell pepper, chopped
• 1 (15-ounce) can black beans, rinsed and drained
• 1 (10-ounce) can diced tomatoes and green chilies
• 1 cup long-grain white rice
• 2 cups beef broth
• 1 cup shredded cheddar cheese

Instructions:

1. Brown the ground beef with the onion and bell pepper in a large skillet. Drain excess fat.
2. Add the black beans, diced tomatoes and green chilies, rice, and beef broth. Bring to a boil, then cover and simmer for 15-20 minutes, or until the rice is cooked.
3. Top with cheese and let it melt before serving.

3. Gluten-Free Beef and Cabbage Skillet

A simple and satisfying skillet meal that’s both low-carb and gluten-free. The cabbage becomes tender and sweet as it cooks with the beef.

Prep time: 10 minutes
Cook time: 20 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1 small head of cabbage, chopped
• 1 onion, chopped
• 1 (14.5-ounce) can diced tomatoes
• 1 tsp garlic powder

Instructions:

1. Brown the ground beef with the onion in a large skillet. Drain excess fat.
2. Add the cabbage, diced tomatoes, and garlic powder. Stir to combine.
3. Cover and cook for 15-20 minutes, or until the cabbage is tender.

4. Shepherd’s Pie with Cauliflower Topping

A low-carb and gluten-free version of the classic shepherd’s pie. The creamy cauliflower topping is a delicious and healthy alternative to potatoes.

Prep time: 25 minutes
Cook time: 30 minutes
Servings: 6

Ingredients:

• 1.5 lbs lean ground beef
• 1 onion, chopped
• 1 cup frozen mixed vegetables
• 1 cup beef broth
• 1 large head of cauliflower, cut into florets
• 1/4 cup milk

Instructions:

1. Preheat oven to 400°F (200°C).
2. Steam or boil the cauliflower until tender. Mash with milk until smooth.
3. Brown the ground beef with the onion in an oven-safe skillet. Drain excess fat.
4. Stir in the mixed vegetables and beef broth. Simmer for 5 minutes.
5. Top the beef mixture with the cauliflower mash.
6. Bake for 20-25 minutes.

5. Gluten-Free Picadillo

A traditional Cuban dish that’s naturally gluten-free. It’s a flavorful and comforting ground beef hash with a unique combination of sweet and savory flavors.

Prep time: 15 minutes
Cook time: 30 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1 onion, chopped
• 1 green bell pepper, chopped
• 1/2 cup tomato sauce
• 1/4 cup green olives
• 2 tbsp raisins
• 1 tsp cumin

Instructions:

1. Brown the ground beef with the onion and bell pepper in a skillet. Drain excess fat.
2. Stir in the tomato sauce, olives, raisins, and cumin. Simmer for 15-20 minutes.
3. Serve with rice.

Gluten-Free Soups and Chilis

6. Gluten-Free Beef and Vegetable Soup

A hearty and nutritious soup that’s packed with vegetables and flavor. It’s a perfect meal for a cold day.

Prep time: 15 minutes
Cook time: 45 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 1 onion, chopped
• 2 carrots, chopped
• 2 celery stalks, chopped
• 1 (28-ounce) can diced tomatoes
• 6 cups beef broth
• 1 cup frozen green beans

Instructions:

1. Brown the ground beef with the onion, carrots, and celery in a large pot. Drain excess fat.
2. Add the diced tomatoes and beef broth. Bring to a boil, then simmer for 30 minutes.
3. Stir in the green beans and cook for another 10 minutes.

7. Classic Gluten-Free Chili

A simple and delicious chili recipe that’s naturally gluten-free. It’s a crowd-pleasing dish that’s perfect for game day or a family dinner.

Prep time: 10 minutes
Cook time: 1 hour
Servings: 8

Ingredients:

• 2 lbs lean ground beef
• 1 large onion, chopped
• 1 (28-ounce) can crushed tomatoes
• 2 (15-ounce) cans kidney beans, rinsed and drained
• 3 tbsp chili powder
• 1 tbsp cumin

Instructions:

1. Brown the ground beef with the onion in a large pot. Drain excess fat.
2. Add the crushed tomatoes, kidney beans, chili powder, and cumin. Stir to combine.
3. Simmer for at least 45 minutes.

8. Stuffed Pepper Soup

All the flavors of stuffed peppers in a warm and comforting soup. It’s a complete meal in a bowl that’s both delicious and gluten-free.

Prep time: 15 minutes
Cook time: 40 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 1 onion, chopped
• 2 bell peppers, chopped
• 1 (28-ounce) can diced tomatoes
• 6 cups beef broth
• 1 cup long-grain white rice

Instructions:

1. Brown the ground beef with the onion and bell peppers in a large pot. Drain excess fat.
2. Add the diced tomatoes, beef broth, and rice. Bring to a boil, then simmer for 25-30 minutes, or until the rice is cooked.

9. Gluten-Free Lasagna Soup

Enjoy the flavors of lasagna without the gluten. This soup uses gluten-free pasta for a delicious and satisfying meal.

Prep time: 15 minutes
Cook time: 30 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 1 onion, chopped
• 1 (24-ounce) jar marinara sauce
• 6 cups beef broth
• 8 oz gluten-free lasagna noodles, broken into pieces
• 1/2 cup ricotta cheese

Instructions:

1. Brown the ground beef with the onion in a large pot. Drain excess fat.
2. Add the marinara sauce and beef broth. Bring to a boil.
3. Add the broken lasagna noodles and cook for 10-12 minutes, or until tender.
4. Serve each bowl with a dollop of ricotta cheese.

10. Creamy Taco Soup

This creamy and flavorful taco soup is naturally gluten-free and is sure to be a family favorite. It’s a quick and easy meal that’s perfect for a busy weeknight.

Prep time: 10 minutes
Cook time: 25 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 1 packet taco seasoning
• 1 (15-ounce) can black beans, rinsed and drained
• 1 (15-ounce) can corn, drained
• 1 (10-ounce) can diced tomatoes and green chilies
• 4 cups chicken broth
• 4 oz cream cheese

Instructions:

1. Brown the ground beef in a large pot. Drain excess fat.
2. Stir in the taco seasoning.
3. Add the black beans, corn, diced tomatoes and green chilies, and chicken broth. Bring to a simmer.
4. Stir in the cream cheese until it is melted and the soup is creamy.

Gluten-Free Casseroles and Bakes

11. Gluten-Free Baked Ziti

A classic comfort food made gluten-free with the use of gluten-free pasta. This baked ziti is a hearty and satisfying meal that’s perfect for a family dinner.

Prep time: 20 minutes
Cook time: 30 minutes
Servings: 8

Ingredients:

• 1 lb lean ground beef
• 16 oz gluten-free ziti pasta, cooked
• 1 (24-ounce) jar marinara sauce
• 1 (15-ounce) container ricotta cheese
• 2 cups shredded mozzarella cheese

Instructions:

1. Preheat oven to 375°F (190°C).
2. Brown the ground beef in a skillet. Drain excess fat.
3. In a large bowl, combine the cooked gluten-free pasta, ground beef, marinara sauce, and ricotta cheese.
4. Transfer the mixture to a 9×13-inch baking dish. Top with mozzarella cheese.
5. Bake for 25-30 minutes.

12. Layered Taco Casserole

This layered casserole is like a taco salad in a warm and satisfying bake. It’s naturally gluten-free and can be customized with your favorite taco toppings.

Prep time: 15 minutes
Cook time: 25 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 1 packet taco seasoning
• 1 (15-ounce) can black beans, rinsed and drained
• 1 cup salsa
• 1 cup shredded cheddar cheese
• Crushed gluten-free tortilla chips for topping

Instructions:

1. Preheat oven to 375°F (190°C).
2. Brown the ground beef in a skillet. Drain excess fat and stir in the taco seasoning.
3. In a baking dish, layer the ground beef, black beans, and salsa. Top with shredded cheese.
4. Bake for 20-25 minutes.
5. Top with crushed gluten-free tortilla chips before serving.

13. Gluten-Free Stuffed Peppers

Classic stuffed peppers are a naturally gluten-free meal. They’re a healthy and flavorful way to enjoy ground beef and vegetables.

Prep time: 20 minutes
Cook time: 50 minutes
Servings: 4

Ingredients:

• 4 large bell peppers
• 1 lb lean ground beef
• 1 cup cooked rice
• 1 (15-ounce) can diced tomatoes
• 1 tsp Italian seasoning

Instructions:

1. Preheat oven to 375°F (190°C).
2. Cut the tops off the bell peppers and remove the seeds.
3. Brown the ground beef in a skillet. Drain excess fat.
4. In a bowl, combine the ground beef, cooked rice, diced tomatoes, and Italian seasoning.
5. Stuff the bell peppers with the beef and rice mixture. Place in a baking dish with a small amount of water in the bottom.
6. Bake for 45-50 minutes, or until the peppers are tender.

14. Zucchini Lasagna

This low-carb and gluten-free lasagna uses slices of zucchini instead of pasta. It’s a healthy and delicious way to enjoy the flavors of lasagna.

Prep time: 25 minutes
Cook time: 45 minutes
Servings: 6

Ingredients:

• 1.5 lbs lean ground beef
• 3 large zucchinis, thinly sliced lengthwise
• 1 (15-ounce) container ricotta cheese
• 1 (24-ounce) jar marinara sauce
• 2 cups shredded mozzarella cheese

Instructions:

1. Preheat oven to 375°F (190°C).
2. Brown the ground beef in a skillet. Drain excess fat.
3. In a baking dish, layer the zucchini slices, marinara sauce, ground beef, and ricotta cheese. Repeat the layers.
4. Top with mozzarella cheese.
5. Bake for 40-45 minutes, or until the zucchini is tender and the cheese is bubbly.

15. Gluten-Free Meatloaf

A classic meatloaf recipe made gluten-free by using gluten-free breadcrumbs. It’s a comforting and satisfying meal that the whole family will love.

Prep time: 15 minutes
Cook time: 1 hour
Servings: 8

Ingredients:

• 2 lbs lean ground beef
• 1 cup gluten-free breadcrumbs
• 1/2 cup milk
• 1 egg
• 1 onion, finely chopped
• 1/4 cup ketchup

Instructions:

1. Preheat oven to 350°F (175°C).
2. In a large bowl, combine the ground beef, gluten-free breadcrumbs, milk, egg, and onion. Mix well.
3. Shape the mixture into a loaf and place it in a loaf pan.
4. Top with ketchup.
5. Bake for 1 hour, or until cooked through.

Gluten-Free Burgers and More

16. Classic Gluten-Free Burgers

Enjoy a classic burger without the gluten by using gluten-free buns. These burgers are simple, juicy, and delicious.

Prep time: 10 minutes
Cook time: 12 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• Salt and pepper to taste
• 4 gluten-free hamburger buns
• Your favorite burger toppings

Instructions:

1. Gently form the ground beef into 4 patties. Season with salt and pepper.
2. Grill or pan-fry the patties to your desired doneness.
3. Serve on gluten-free buns with your favorite toppings.

17. Lettuce Wrap Burgers

For a low-carb and gluten-free burger option, skip the bun altogether and use crisp lettuce leaves instead.

Prep time: 10 minutes
Cook time: 12 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• Salt and pepper to taste
• 8 large lettuce leaves (such as iceberg or butter lettuce)
• Your favorite burger toppings

Instructions:

1. Form the ground beef into 4 patties and season with salt and pepper.
2. Grill or pan-fry the patties to your desired doneness.
3. Wrap each patty in two lettuce leaves and top with your favorite burger toppings.

18. Gluten-Free Meatballs

These meatballs are made with gluten-free breadcrumbs and are perfect for serving with gluten-free pasta or in a meatball sub on a gluten-free roll.

Prep time: 15 minutes
Cook time: 20 minutes
Servings: 6

Ingredients:

• 1.5 lbs lean ground beef
• 1/2 cup gluten-free breadcrumbs
• 1/4 cup Parmesan cheese
• 1 egg

Instructions:

1. Preheat oven to 400°F (200°C).
2. In a large bowl, combine all the ingredients. Mix gently and form into meatballs.
3. Place the meatballs on a baking sheet and bake for 15-20 minutes.

19. Beef and Rice Stuffed Cabbage Rolls

These cabbage rolls are a comforting and satisfying meal that’s naturally gluten-free. The cabbage leaves are stuffed with a flavorful mixture of ground beef and rice.

Prep time: 25 minutes
Cook time: 1 hour
Servings: 6

Ingredients:

• 1 large head of cabbage
• 1 lb lean ground beef
• 1 cup cooked rice
• 1 onion, chopped
• 1 (28-ounce) can tomato sauce

Instructions:

1. Steam the cabbage leaves until they are pliable.
2. Brown the ground beef with the onion in a skillet. Drain excess fat.
3. In a bowl, combine the ground beef, cooked rice, and half of the tomato sauce.
4. Stuff the cabbage leaves with the beef and rice mixture. Roll them up and place them in a baking dish.
5. Pour the remaining tomato sauce over the cabbage rolls.
6. Bake at 350°F (175°C) for 1 hour.

20. Gluten-Free Korean Beef Bowls

This popular dish is easily made gluten-free by using gluten-free tamari instead of soy sauce. It’s a quick and flavorful meal that’s perfect for a busy weeknight.

Prep time: 10 minutes
Cook time: 15 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1/4 cup gluten-free tamari
• 2 tbsp honey
• 1 tbsp sesame oil
• 1 tsp grated ginger
• Cooked rice for serving

Instructions:

1. Brown the ground beef in a skillet. Drain excess fat.
2. In a small bowl, whisk together the tamari, honey, sesame oil, and ginger. Pour the sauce over the ground beef and simmer for 2-3 minutes.
3. Serve over cooked rice.

21. Beef-Stuffed Acorn Squash

A beautiful and delicious fall-inspired dish that is naturally gluten-free. The sweetness of the acorn squash pairs perfectly with the savory ground beef filling.

Prep time: 20 minutes
Cook time: 1 hour
Servings: 4

Ingredients:

• 2 acorn squash
• 1 lb lean ground beef
• 1 apple, chopped
• 1/2 onion, chopped
• 1/4 cup dried cranberries
• 1 tsp cinnamon

Instructions:

1. Preheat oven to 400°F (200°C).
2. Cut the acorn squash in half and scoop out the seeds. Place cut-side down on a baking sheet and bake for 30-40 minutes, or until tender.
3. While the squash is baking, brown the ground beef with the onion in a skillet. Drain excess fat.
4. Stir in the chopped apple, dried cranberries, and cinnamon. Cook for 5 minutes.
5. Fill the baked acorn squash halves with the beef mixture. Return to the oven and bake for another 10-15 minutes.

22. Gluten-Free Swedish Meatballs

Enjoy a gluten-free version of this classic comfort food. The creamy gravy is thickened with cornstarch instead of flour.

Prep time: 20 minutes
Cook time: 30 minutes
Servings: 6

Ingredients:

• 1.5 lbs lean ground beef
• 1/2 cup gluten-free breadcrumbs
• 1 egg
• 1/4 cup finely chopped onion
• For the gravy:
• 3 tbsp butter
• 2 tbsp cornstarch
• 3 cups beef broth
• 1/2 cup heavy cream

Instructions:

1. In a bowl, combine the ground beef, gluten-free breadcrumbs, egg, and onion. Form into meatballs.
2. Brown the meatballs in a large skillet. Remove the meatballs from the skillet.
3. In the same skillet, melt the butter. Whisk in the cornstarch to form a paste.
4. Gradually whisk in the beef broth and heavy cream. Bring to a simmer and cook until the gravy has thickened.
5. Return the meatballs to the skillet and simmer in the gravy for 10-15 minutes.

23. Beef and Vegetable Skewers

These colorful and flavorful skewers are perfect for grilling. They are a fun and easy way to enjoy a gluten-free meal.

Prep time: 25 minutes
Cook time: 10 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1/4 cup gluten-free breadcrumbs
• 1 egg
• 1 bell pepper, cut into chunks
• 1 zucchini, cut into chunks
• 1 red onion, cut into chunks
• Cherry tomatoes

Instructions:

1. In a bowl, combine the ground beef, gluten-free breadcrumbs, and egg. Form into small meatballs.
2. Thread the meatballs and vegetables onto skewers.
3. Grill or broil for 8-10 minutes, turning occasionally, until the meatballs are cooked through and the vegetables are tender.

24. Gluten-Free Beef and Mushroom Risotto

This creamy and comforting risotto is made with Arborio rice, which is naturally gluten-free. The ground beef and mushrooms add a rich and savory flavor.

Prep time: 10 minutes
Cook time: 40 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 8 oz mushrooms, sliced
• 1 onion, chopped
• 1.5 cups Arborio rice
• 6 cups beef broth, warmed
• 1/2 cup grated Parmesan cheese

Instructions:

1. Brown the ground beef with the mushrooms and onion in a large pot. Drain excess fat.
2. Add the Arborio rice and cook for 1 minute, stirring constantly.
3. Add the beef broth to the rice, one ladle at a time, stirring frequently. Wait until the liquid is almost completely absorbed before adding the next ladle.
4. Continue this process for 20-25 minutes, or until the rice is creamy and al dente.
5. Stir in the Parmesan cheese and serve immediately.

25. Deconstructed Egg Roll in a Bowl

All the flavors of an egg roll without the gluten-containing wrapper. This one-pan meal is quick, easy, and incredibly delicious.

Prep time: 15 minutes
Cook time: 20 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1 (16-ounce) bag coleslaw mix
• 1/4 cup gluten-free tamari
• 2 tbsp rice vinegar
• 1 tbsp sesame oil

Instructions:

1. Brown the ground beef in a large skillet or wok. Drain excess fat.
2. Add the coleslaw mix and stir-fry for 5-7 minutes.
3. In a small bowl, whisk together the tamari, rice vinegar, and sesame oil. Pour the sauce over the stir-fry and cook for another 2-3 minutes.

26. Beef and Sweet Potato Curry

This fragrant and flavorful curry is naturally gluten-free and packed with nutrients. The sweetness of the sweet potatoes is a perfect complement to the savory beef.

Prep time: 15 minutes
Cook time: 30 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 1 large sweet potato, peeled and cubed
• 1 onion, chopped
• 1 (13.5-ounce) can coconut milk
• 2 tbsp red curry paste
• 1 tbsp fish sauce

Instructions:

1. Brown the ground beef with the onion in a large pot. Drain excess fat.
2. Add the sweet potato, coconut milk, red curry paste, and fish sauce. Bring to a boil, then simmer for 20-25 minutes, or until the sweet potato is tender.

27. Gluten-Free Beef and Cornbread Casserole

This comforting casserole features a savory beef filling topped with a gluten-free cornbread crust. It’s a hearty and satisfying meal that the whole family will enjoy.

Prep time: 20 minutes
Cook time: 30 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 1 onion, chopped
• 1 (15-ounce) can corn, drained
• 1 (15-ounce) can kidney beans, rinsed and drained
• 1 cup salsa
• For the topping:
• 1 cup gluten-free all-purpose flour
• 1 cup cornmeal
• 1/4 cup sugar
• 1 tbsp baking powder
• 1 tsp salt
• 1 cup milk
• 1/4 cup vegetable oil
• 1 egg

Instructions:

1. Preheat oven to 400°F (200°C).
2. Brown the ground beef with the onion in a skillet. Drain excess fat.
3. Stir in the corn, kidney beans, and salsa. Transfer the mixture to a baking dish.
4. In a bowl, combine all the ingredients for the cornbread topping. Pour the batter over the beef filling.
5. Bake for 20-25 minutes, or until the cornbread is golden brown and cooked through.

28. Beef and Kimchi Fried Rice

This flavorful fried rice gets a spicy and tangy kick from the kimchi. It’s a quick and easy meal that’s perfect for using up leftover rice.

Prep time: 10 minutes
Cook time: 20 minutes
Servings: 4

Ingredients:

• 1 lb lean ground beef
• 4 cups cooked and chilled rice
• 1 cup chopped kimchi
• 2 eggs, lightly beaten
• 1/4 cup gluten-free tamari

Instructions:

1. Brown the ground beef in a large skillet or wok. Drain excess fat and set aside.
2. Add the kimchi to the skillet and cook for 2-3 minutes.
3. Push the kimchi to one side of the skillet and pour the beaten eggs onto the other side. Scramble the eggs.
4. Add the cooked rice and ground beef to the skillet. Stir everything together.
5. Pour the tamari over the fried rice and stir to combine.

29. Gluten-Free Beef and Noodle Casserole

This creamy and comforting casserole is made with gluten-free egg noodles and a savory beef and mushroom sauce.

Prep time: 20 minutes
Cook time: 30 minutes
Servings: 6

Ingredients:

• 1 lb lean ground beef
• 8 oz mushrooms, sliced
• 1 onion, chopped
• 2 tbsp butter
• 2 tbsp gluten-free all-purpose flour
• 2 cups beef broth
• 1 cup sour cream
• 8 oz gluten-free egg noodles, cooked

Instructions:

1. Preheat oven to 350°F (175°C).
2. Brown the ground beef with the mushrooms and onion in a skillet. Drain excess fat.
3. In a separate saucepan, melt the butter. Whisk in the gluten-free flour to form a paste.
4. Gradually whisk in the beef broth. Bring to a simmer and cook until the sauce has thickened.
5. Remove from heat and stir in the sour cream.
6. In a baking dish, combine the cooked gluten-free noodles, the beef mixture, and the creamy sauce. Mix well.
7. Bake for 20-25 minutes, or until heated through.

30. Beef and Spinach Stuffed Portobello Mushrooms

These stuffed portobello mushrooms are a delicious and elegant gluten-free meal. They are filled with a savory mixture of ground beef, spinach, and cheese.

Prep time: 15 minutes
Cook time: 25 minutes
Servings: 4

Ingredients:

• 4 large portobello mushrooms, stems removed
• 1 lb lean ground beef
• 1 (10-ounce) package frozen spinach, thawed and squeezed dry
• 1/2 cup shredded mozzarella cheese
• 1/4 cup grated Parmesan cheese

Instructions:

1. Preheat oven to 400°F (200°C).
2. Place the portobello mushrooms on a baking sheet.
3. Brown the ground beef in a skillet. Drain excess fat.
4. In a bowl, combine the ground beef, spinach, and half of the mozzarella and Parmesan cheese.
5. Fill the mushroom caps with the beef and spinach mixture.
6. Top with the remaining cheese.
7. Bake for 15-20 minutes, or until the mushrooms are tender and the cheese is melted and bubbly.