Chocolate Banana Refrigerator Cake

1. Line 13x9 pan with foil. Beat vanilla pudding mix and 1-1/2 cup milk with whisk 2 minutes. Stir in 1 cup cool whip. Repeat in separate bowl with chocolate pudding mix, remaining milk and remaining cool whip. 2. Break 1 graham cracker in half and coarsely crush 7 of the remaining squares. Arrange 14 graham squares and 1 graham rectangle on bottom of prepared pan, cover with vanilla pudding, remaining graham pieces and chocolate pudding. 3. Refrigerate 4 hours.. When ready to serve, use foil handles to lift dessert from pan; top with bananas and crushed grahams.