Hash Brown Casserole
["2 lb. frozen hash brown potatoes", "1 stick margarine", "1 small onion, chopped", "1 can cream of chicken soup", "1 pt. sour cream", "8 oz. shredded Cheddar cheese"]
["Preheat oven to 375\u00b0.", "Cook onion in margarine until tender. Mix all ingredients.", "Bake for 1 hour."]
["frozen hash brown potatoes", "margarine", "onion", "cream of chicken soup", "sour cream", "Cheddar cheese"]