1 lb. ground beef
1 med. onion, chopped
8 slices American cheese
4 or 5 med. raw potatoes
1 can cream of mushroom soup

Pat ground beef evenly in bottom of rectangular pyrex dish. Salt meat lightly, put chopped onion over meat; place cheese slices over onion. Layer raw sliced potatoes over cheese. Pour mushroom soup over potatoes. Bake 350 degrees 1 hour.