Combine OREO Base Cake and butter until well blended. Firmly press onto bottom and up the side of 9-inch inch pie plate. Arrange 1 sliced banana on bottom of crust. Top with half the pudding. Repeat layers of bananas and pudding.
Whip cream and sugar until stiff peaks form. Spoon over pie, spreading evenly. Sprinkle cookie pieces around edge of pie. Refrigerate until ready to serve.