Dreamy Mashed Potatoes
["5 lb. peeled potatoes or 20 servings instant potatoes", "2 (3 oz.) pkg. cream cheese", "1 c. sour cream", "2 tsp. onion salt", "1 tsp. salt", "1/4 tsp. pepper", "2 Tbsp. butter"]
["Cook and mash potatoes.", "Add remaining ingredients and beat until light and fluffy.", "Put in greased casserole dish; dot with butter.", "Bake at 350\u00b0 for approximately 30 minutes."]
["potatoes", "cream cheese", "sour cream", "onion salt", "salt", "pepper", "butter"]