Shredded Cheesy Potato Casserole

30 ounces frozen shredded hash browns
1 10 3/4 ounce can cream of chicken soup
1 10 3/4 ounce can cream of onion soup
8 ounces sour cream
4 cups sharp shredded cheese

Mix all ingredients and bake, uncovered, at 350 degrees for 35 minutes.
Top with crushed cornflakes and 1/2 stick melted butter
Continue to cook, uncovered, for 5 to 10 minutes, or until cornflakes begin to brown