1/2 pkg. seashell or regular macaroni
3 tbsp. melted butter
1 large onion
1 lb. hamburger meat
1 c. grated cheese (of your choice)

Brown meat and onion in butter. Drain excess grease. Cook macaroni by directions; drain. In deep casserole, build up in layers the meat and onion mixture, macaroni and top with cheese. Pour 1/2 can of tomato soup and 1/4 cup of water (mixed) over it.

Bake at 275°F for 30 to 40 minutes.