This is an easy, yummy and guilt-free dessert:
1 pre-made low-fat graham cracker crust
3 light yoplait key lime pie yogurts
3 oz. sugar free lime jello
8 oz. cool whip
Mix jello with 1/4 cup boiling water. Stir until completely dissolved. Add yogurt one at a time and mix well after each one. Fold in cool whip. Pour into pie crust and let set up in the fridge.
It's also really good using lemon yogurt and lemon jello.