Pineapple Orange Cake

This cake is delightful... Emphasis on the "light"! For a dessert, it's pretty guiltless- but no one would ever know! I have made it several times to take to my grandparent's house... I am pretty
9sure there has never been a piece left for me to take home! (Until I can get my own picture up, this is the one from the Taste of Home website... But yours will look this good too!)

Pineapple Orange Cake

1 pkg. (18 1/4oz.) yellow cake mix
1 can (11 oz.) mandarin oranges, undrained
4 egg whites
1/2 cup unsweetened apple sauce
Topping
1 can (20 oz.) crushed pineapple, undrained
1 pkg. (1 oz.) sugar-free instant vanilla pudding mix
1 carton (8 oz.) reduced fat cool whip

Preheat oven to 350 degrees. In a large bowl, beat cake mix, oranges, egg whites, and applesauce on low speed for 2 minutes. Pour in a 13x9" baking dish coated in cooking spray. Bake 25-30 minutes, or until toothpick inserted in center comes out clean. Cool on wire rack. In a bowl, combine the pineapple and pudding mix. Fold in whipped topping until just blended. Spread over cooled cake. Refrigerate at least 1 hour before serving.