French Cheese Casserole

• 2 pounds of frozen hash brown potatoes
• 1/2 cup onions, chopped
• 1/4 cup melted butter
• 1 can cream of mushroom soup
• 2 cup cheddar cheese, shredded
• 16 oz. sour cream

Mix above ingredients and pour into 9 x 13 baking dish.

Sprinkle cornflake or bread crumbs on top.

Bake for one hour at 350 degrees.

OPTIONAL: 1/2 cup Parmesan cheese may be mixed into the casserole.