Potato Casserole - cooking recipe

Ingredients

2 lb. frozen hash browns, thawed 30 minutes
1 chopped onion
1 can cream of celery soup
8 oz. ctn. sour cream
1/2 c. melted margarine
8 oz. grated Cheddar cheese

Preparation

Spread hash browns in 9 x 13-inch well-greased pan.
Mix all ingredients and pour over potatoes.
Bake at 350\u00b0 for 1 hour.