Pink Lemonade Pie
["1 (8 or 9-inch) baked pastry shell", "1 (8 oz.) pkg. cream cheese, softened", "1 (14 oz.) can sweetened condensed milk", "1 (6 oz.) can frozen pink lemonade concentrate, thawed", "few drops red food coloring (optional)", "1 (4 oz.) container frozen nondairy whipped topping, thawed"]
["In large mixer bowl, beat cheese until fluffy; gradually beat in sweetened condensed milk, then lemonade concentrate and food coloring if desired.", "Fold in whipped topping.", "Pour into prepared pastry shell.", "Chill 4 hours or until set.", "Refrigerate leftovers."]
["pastry shell", "cream cheese", "condensed milk", "coloring"]