1. Prepare the Pan:
- Line the bottom of a 9-inch square pan with 4 1/2 graham crackers.
2. Make the Pudding:
- In a small bowl, whisk the cold fat-free milk and the instant pudding mix for 2 minutes.
- Let stand until soft-set, about 2 minutes.
3. Prepare the Bananas:
- Place the sliced banana in another small bowl.
- Toss with the lemon juice to prevent browning.
4. Combine Pudding and Fruit:
- Stir the banana slices and 1 cup of the sliced strawberries into the pudding.
- Fold in 1 3/4 cups of the reduced-fat whipped topping.
5. Assemble the Pudding:
- Spread half of the pudding mixture over the graham crackers in the pan.
- Repeat the layers (graham crackers and remaining pudding mixture).
6. Chill:
- Cover the pan and refrigerate overnight. This allows the pudding to set completely and the flavors to meld.
7. Top and Serve:
- Just before serving, top with the remaining sliced strawberries and the remaining whipped topping.
- If desired, garnish with mint sprigs.