1 box vanilla wafers
4 cups 2% milk, divided
3 boxes sugar-free vanilla instant pudding
Line bowl with vanilla wafers, then top with sliced bananas.
Mix 1 1/3 cups 2% milk and 1 box sugar-free vanilla pudding and pour over wafers and bananas. Make 3 layers this way, using 1 box of pudding at time as it sets up very quickly. Top with Cool Whip.