Hash Brown Potato Casserole
["2 lb. bag hash browns", "1 large onion, chopped", "1 can cream of mushroom soup", "1 (16 oz.) carton sour cream", "1 tsp. salt", "1/4 tsp. black pepper", "1 (8 oz.) pkg. sharp cheese, grated", "3 Tbsp. margarine, melted"]
["Combine all ingredients together and put in a 9 x 13-inch dish sprayed with Pam.", "Bake at 325\u00b0 for 45 minutes."]
["hash browns", "onion", "cream of mushroom soup", "sour cream", "salt", "black pepper", "sharp cheese", "margarine"]