1 (18.25 ounce) package white cake mix
1 (3.4 ounce) package instant lemon pudding mix
1 (8 ounce) container frozen whipped topping, thawed
3 bananas, sliced
Prepare and bake cake mix according to package. Bake as directed on the package. Allow to cool. Cut into 1 inch squares.
Spread pudding mixture evenly over cooled cake. X-shape portion of the pudding mixture over the top of the cake. Refrigerate for 24 hours or overnight.
Spread whipped topping over the pudding-filled cakes. Freeze until serving.