Potato And Cheese Casserole
["1 pkg. frozen hash brown potatoes", "1 pt. sour cream", "1 stick margarine", "1 small finely chopped onion", "8 to 10 oz. shredded medium Cheddar cheese", "1 can cream of mushroom soup", "1/2 soup can milk", "salt and pepper to taste", "parsley flakes (if desired)"]
["Melt margarine.", "Mix all ingredients together.", "Leave enough cheese to sprinkle on top of casserole the last 5 minutes of baking.", "Put in 9 x 13-inch casserole dish and bake at 350\u00b0 to 400\u00b0 for approximately 1 hour."]
["frozen hash brown potatoes", "sour cream", "margarine", "onion", "Cheddar cheese", "cream of mushroom soup", "milk", "salt", "parsley"]