Cover bottom of a deep baking dish with diced potatoes. Break half of the ground beef in chunks and cover the potatoes. Spread diced onions on top of the Ground beef salt each layer. Add remaining ground beef to cover the onions. Spread celery and green peppers on top of the ground beef. Pour on can of tomato sauce. Top with cheese. Place in 300 ° oven and cook for one hour. Enjoy!!!