Potatoes Au Gratin
["2 lb. frozen hash brown potatoes", "1 can cream of chicken soup", "1 c. onion, chopped", "1 c. sour cream", "8 oz. grated Cheddar cheese", "3 pats butter or margarine", "salt and pepper as desired"]
["Mix all ingredients together and place in greased 9 x 14-inch baking dish.", "Bake 1 hour at 375\u00b0."]
["frozen hash brown potatoes", "cream of chicken soup", "onion", "sour cream", "Cheddar cheese", "pats butter", "salt"]