Hashed Brown Potato Casserole
["1 (2 lb.) pkg. frozen hash browns", "1 c. diced onions", "1 c. cream of chicken soup", "1 stick melted margarine", "8 oz. sharp Cheddar cheese, grated", "1 can onion rings"]
["Combine first 5 ingredients in bowl; mix well.", "Place in buttered 8 x 13-inch baking dish.", "Bake at 350\u00b0 for 45 minutes. Top with onion rings.", "Bake 15 minutes longer.", "Yields 12 servings."]
["frozen hash browns", "onions", "cream of chicken soup", "margarine", "Cheddar cheese", "onion rings"]