Cheesy Potatoes
["2 lb. bag frozen hash brown potatoes", "8 oz. shredded Cheddar cheese", "8 oz. sour cream", "1 c. Parmesan cheese"]
["Mix together.", "Bake at 350\u00b0 for 1 hour.", "Sprinkle on Parmesan. Bake for additional 30 minutes."]
["potatoes", "Cheddar cheese", "sour cream", "Parmesan cheese"]