Add cake mix, apple pie filling and eggs to a large mixing bowl.
 Using a hand or stand mixer, thoroughly combine all the ingredients until apple pieces are broken up. [You can also use a food processor to break up the apple pieces prior to adding to the mixing bowl.
Pour mixture into muffin tins, about 3/4 of the way.
Bake 20-30 minutes or until a toothpick comes out clean.
Allow to cool. Sprinkle cinnamon over the top (optional)