2 lb. frozen hashed brown potatoes
1 c. chopped onion
1 can cream of chicken soup
1 c. sour cream
1/2 c. melted butter
8 oz. shredded sharp Cheddar cheese
1 c. crushed potato chips

Thaw potatoes at least 30 minutes. Mix with remaining ingredients except potato chips. Pour into 9x13 inch greased baking pan.

At this point, casserole can be refrigerated or frozen. Just before baking, top with crushed potato chips. Bake in 375 degree oven for 1 hour. Serves 10-12.