Ez Potato Casserole
["2 lb. frozen hash browns", "8 oz. sour cream", "8 oz. Cheddar cheese, grated", "2 cans cream of potato soup", "1/4 c. Parmesan cheese"]
["Mix all ingredients except Parmesan cheese.", "Pour into buttered 13 x 9 x 2-inch pan.", "Sprinkle Parmesan cheese on top. Bake at 300\u00b0 for 1 1/2 hours."]
["frozen hash browns", "sour cream", "Cheddar cheese", "cream of potato soup", "Parmesan cheese"]