Refrigerator Mashed Potatoes - cooking recipe

Ingredients

5 lb. potatoes
8 oz. cream cheese (soft fat-free)
8 oz. sour cream (low-fat)
1/2 tsp. onion salt
1 tsp. salt
1/4 tsp. pepper
1/2 tsp. garlic salt
2 Tbsp. margarine

Preparation

Cook peeled potatoes until tender and drain.
Mash until smooth, adding remaining ingredients.
Cover and refrigerate.