Good-Cooking - Glorified Mashed Potatoes

Ingredients

• 3 ounces cream cheese, softened
• 1/2 cup sour cream
• 1/4 cup butter or margarine, softened
• 1 envelope ranch salad dressing mix
• 1 teaspoon dried parsley flakes
• 6 cups warm mashed potatoes, prepared
• without milk or butter