Potato Casserole - cooking recipe

Ingredients

1 pint sour cream
1-2 lb pkg frozen hash Brown Potatoes-thawed
2 cans Cream of Potato soup
1 medium onion, grated
10 oz grated cheddar cheese
parmesan cheese

Preparation

Mix all together.
Pour into greased 9x13 pan.
Bake at 350 degrees, covered for 90 minutes.
Serves 12.