Hash Brown Casserole
["3 (12 oz.) pkg. frozen hash browns, thawed", "1/2 c. butter or margarine, melted", "1/2 c. chopped onion", "1/2 tsp. salt (more, if needed)", "1/4 tsp. pepper", "2 c. grated Cheddar cheese", "8 oz. sour cream", "1 can mushroom or chicken soup"]
["Mix all ingredients.", "Bake in 9 x 13 x 2-inch Pyrex dish at 350\u00b0 for 25 to 30 minutes.", "Serves 12."]
["frozen hash browns", "butter", "onion", "salt", "pepper", "Cheddar cheese", "sour cream", "mushroom"]