Bake Angel Food cake as directed on box. Cool.

FILLING:

1 box instant lemon pudding mix
1 1/2 c. skim milk

Mix as directed. Fold in 1 (8 ounce) carton lemon lowfat yogurt. Put in refrigerator until filling is of spreading consistency, about 1 hour. Cut cake in half and put in filling. Put top of cake back on.

TOPPING:

1 envelope Dream Whip

Mix Dream Whip as directed and frost cake on top and sides. Refrigerate cake so filling and topping set so cake can be sliced.