Pistachio Dream Cake

1 (18 OZ) light yellow cake mix
1 (1 OZ) instant sugar free pistachio pudding mix
1 (8 OZ) nonfat plain yogurt
3 egg whites
1 teaspoon vanilla
1 cup diet lemon lime soda
1 (2x9x13) baking dish, coated with nonstick cooking spray

(Preheat oven to 350 degrees)

FROSTING:
1 and 1/2 cups cold skim milk
1 (1 OZ) instant sugar free pistachio pudding mix
2 cups light whipped topping

In a mixing bowl, combine dry cake mix, pudding mix, yogurt, egg
whites, vanilla; beat on low speed for 1 minute. gradually beat in
diet soda. pour into prepared pan, bake 20 to 25 minutes or until
cake tests done.

FROSTING: combine milk, pudding mix in mixing bowl, beat on low
speed for 2 minutes. fold in whipped topping. spread over cake
store cake in refrigerator.

This recipe for Pistachio Dream Cake is courtesy of Silveril, thanks!