Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
                        ----Batter----
  18 1/4  oz box        yellow cake mix
   1      tsp           baking powder
   3                    egg whites -- whipped
  20      oz can        apple pie filling
   1      tbsp          oil
   1      tsp           cinnamon
     1/2  tsp           lemon extract
     1/4  tsp           nutmeg
                        ----Topping----
     1/4  c             margarine -- cold
     1/2  c             granulated sugar
     1/2  c             unbleached flour
   1      tsp           cinnamon

Preparation:

Preheat oven at 350. Prepare a 13 x 9" pan with cooking spray and flour. To prepare batter, combine cake mix and baking powder in a small mixing bowl. In another mixing bowl, combine egg whites, apple pie filling, oil, cinnamon, lemon extract, and nutmeg. Mix dry ingredients with wet ingredients just until moistened. Pour batter into prepared pan. Meanwhile, to prepare topping, combine margarine, sugar, flour, and cinnamon in another mixing bowl. Blend with a pantry blender to make crumbs. Sprinkle the crumbs over top of batter. Bake 35 minutes.