Easiest Cake Recipe EVER!

My friend Karan suggested this recipe to me and it's brilliant!  It has only two ingredients and they may already be in your pantry.  This cake is super moist and has almost as many variations as there are cooks.  Here's what you do--thoroughly mix a boxed cake mix with a can of pie filling, pour into a 13x9 inch pan that you've sprayed with nonstick cooking spray and bake at 350 for about 35-40 minutes (check for "doneness" with a toothpick at 30-35 minutes).  That's it.  No, really.  That's it.

I made mine with devil's food cake mix and cherry pie filling, but I've also made one with spice cake mix and apple pie filling.  My daughter said it tasted like fall!  I'd also like to try lemon cake with lemon pie filling.

I'd love to hear your ideas for other combinations.  What do you think- lemon cake and blueberry filling?