Hash Brown Potato Casserole
["1 medium onion, chopped", "1/4 c. butter or margarine, melted", "1 (32 oz.) pkg. frozen hash brown potatoes, thawed", "1 (16 oz.) carton sour cream", "1 (10 3/4 oz.) can cream of celery soup (undiluted)", "1 c. (4 oz.) shredded Cheddar cheese", "2 c. corn flakes cereal, crushed", "tomato rose and fresh chives, garnish"]
["Saute onion in butter until tender.", "Combine onion mixture, hash brown potatoes and next 3 ingredients in a large bowl; stir well.", "Spoon potato mixture into a lightly greased 11 x 7 x 1 1/2-inch baking dish.", "Top with crushed cereal.", "Yield:", "6 to 8 servings."]
["onion", "butter", "frozen hash brown potatoes", "sour cream", "cream of celery soup", "Cheddar cheese", "corn flakes cereal", "tomato"]