In a large bowl, mix together the ground chicken, almond our, garlic, onion powder, salt, and pepper.
Add the avocado, gently incorporating into the meat while forming four patties. Set aside.
In a large skillet over medium heat, heat the olive oil for about 1 minute. Add the patties to the skillet.
Cook for about 8 minutes per side, or until golden brown and cooked through.
Serve on a low-carb bun, in a lettuce wrap (if using), or on its own.