Potatoes Duchess
["2 lb. hash browns", "1 stick melted margarine", "1 c. diced onions", "8 oz. grated cheddar cheese", "1 can cream of chicken soup", "16 oz. container sour cream", "salt and pepper to taste", "potato chips-optional"]
["Mix all ingredients together.", "Pour into 9 1/2", "x 13 casserole dish.", "Bake at 350\u00b0 for 1 hour.", "If desired, during the last 15 minutes add 1 cup crushed potato chips on top."]
["hash browns", "margarine", "onions", "cheddar cheese", "cream of chicken soup", "sour cream", "salt", "potato chips"]