Holiday Potato Casserole - cooking recipe

Ingredients

1 (20 oz.) pkg. hash browns (frozen)
1 medium onion, chopped
1 can mushroom soup
2 c. Cheddar cheese, grated
1 (16 oz.) sour cream
1/2 stick margarine
2 c. cornflakes, crushed

Preparation

Combine all ingredients except cornflakes in a large bowl and mix well.
Spread into a greased 13 x 9-inch pan or casserole. Top with cornflakes and bake at 400\u00b0 for 1 hour.
Serve hot.