This is a bit different for cheesy potatoes, but very easy since you don’t have to cut up all those ‘taters.
1 large package frozen hash browns, thawed
2 cans potato soup, undiluted
1 pint sour cream
8 oz. grated cheddar cheese
½ cup parmesan cheese
Mix all ingredients together. Pour into a buttered 1 ½ quart casserole and bake for 30 minutes at 350º. Serves 4. Double for more.