Potato Casserole
["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"]
["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."]
["frozen hash browns", "onion", "cream of celery soup", "sour cream", "margarine", "Cheddar cheese"]