2 lb. pkg. frozen hash brown potatoes
1 stick butter, melted
8 oz. carton sour cream
1 med. size onion, diced
2 cans cream of mushroom soup
1 c. crushed corn flakes

Thaw potatoes, mix all of the above. Cover with grated American cheese. Cover with layer of crushed corn flakes. Bake 40 minutes at 350 degrees.