Scalloped Potatoes
["2 lb. bags frozen hash browns *", "1 carton sour cream", "1/2 c. margarine", "1 tsp. salt", "1/2 tsp. pepper", "1/2 c. chopped onion", "1 can cream of chicken soup", "10 oz. grated Longhorn cheese"]
["*Or boil potatoes with peel on them and cut in cubes, if desired.", "Do not thaw potatoes if frozen are used."]
["sour cream", "margarine", "salt", "pepper", "onion", "cream of chicken soup", "Longhorn cheese"]