(Be sure sugar is one of the very last ingredients, or preferably no sugar at all), or equivalent tomato sauce plus 1 teaspoon Italian seasonings.
Combine the beef, egg, cream, and seasonings well in a mixing bowl. Divide the meat into 4 equal parts and form each into a small loaf shape. Set them aside. Bring a medium-sized pot of water to a boil. Turn it off and place the cabbage leaves into the pot for 5 minutes, until they are soft and pliable. Place the leaves on a large plate or cutting board. Put a piece of meat on a cabbage leaf and wrap it end over end, tucking the ends as if it were a small burrito.
Place the rolls into an 8” square baking dish, and pour the stewed tomatoes or tomato sauce over the top. Bake at 350◦F for about 45 minutes to 1 hour, or until they test at 170◦F with a meat thermometer.