1 lb. hamburger, lean
1 lg. onion, sliced and ringed
1 lg. tomato, sliced
6 American cheese slices
1 loaf French bread, whole

Slice French bread lengthwise. Dig out 1 inch of middle of bread. Put hamburger in middles then onion slices and tomato. Bake at 375 degrees for 1 hour. About 15 minutes, before done put cheese slices on top so it will melt.