Combine all ingredients with ground beef and season lightly with salt and pepper. Clean bell peppers by removing stems and seeds and pithy material.Stuff the peppers tightly, using a large spoon. Make extra meatballs with remaining meat mixture.
Place peppers upright in a suitable boiler and bring to a boil. Reduce the heat, cover and simmer until done, approximately 1-2 hours. Makes lots of gravy; so, serve with mashed potatoes. Even better as a leftover and stock can be used as a soup base.