MIX Oreo Baking Crumbs with butter. Press onto bottom and sides of 9-inch pie plate. Set aside.

MIX cream cheese and marshmallow creme in large bowl with electric mixer on medium speed until well blended. Add sherbet; mix well. Gently stir in whipped topping. Pour into prepared crust.

FREEZE several hours or until firm. If desired, garnish with additional whipped topping just before serving.