Grandma'S Cheesy Hash Browns
["32 oz. pkg. frozen hash browns, thawed", "2 cans potato soup, undiluted", "16 oz. sour cream", "2 c. (8 oz.) shredded Cheddar cheese", "1 c. Parmesan cheese", "1 c. crushed cornflakes (optional)"]
["Combine first 5 ingredients and stir well.", "Spoon into greased 13 x 9-inch pan.", "Top with crushed cornflakes, if desired.", "Bake at 350\u00b0 for 40 minutes."]
["frozen hash browns", "potato soup", "sour cream", "Cheddar cheese", "Parmesan cheese", "cornflakes"]