Potato Casserole - cooking recipe

Ingredients

2 lb. bag hash browns
1 can cream of mushroom soup
8 oz. sour cream
salt/pepper
1 small onion, chopped
1/2 lb. grated Cheddar cheese
1/4 c. margarine

Preparation

Preheat oven to 350\u00b0. Melt margarine in 9 x 13-inch pan. Mix all other ingredients. Bake uncovered for 1 hour.