This is a dish my mother made, for many years. It is sort of reminiscent of porcupine meatballs.
1 1/2 lbs hamburger
1 1/2 cups soft bread crumbs (bread torn or cut into small cubes)
1/3 cup chopped green pepper
1/2 tsp garlic salt
1/2 - 1 tsp salt
1/8 tsp pepper
1 egg, beaten
1/3 cup ketchup
16 ( 3/4" ) cubes of American Cheese
2 tbsp oil
3 - 4 (8 - oz) cans tomato sauce
Mix together the hamburger, bread crumbs, green pepper, garlic salt, salt, pepper, egg and ketchup. Form into 16 meatballs. Push a cube of cheese into the center of the meatball, forming the meat around the cheese. Carefully brown the meatballs in the oil in a heavy skillet, being careful not to break apart the meatballs. Drain the oil and pour 2 of the cans of tomato sauce over the meatballs. Cover skillet and cook 20 minutes on medium - low. Uncover the skillet and add the last can of tomato sauce, and cook for an additional 5 - 10 minutes, or until the meatballs are cooked through, and the sauce has thickened. Serve over hot, cooked rice.