In a large bowl, gently mix dry cake mix, pie filling, eggs and chocolate chips with a rubber scraper; break up any undissolved mix by pressing with scraper.
Carefully spread in pan.
Bake the 15x10x1" pan for 25-30 minutes or the 9x13" pan for 35-40 minutes or until toothpick inserted in center comes out clean.
Cool completely for about 1 hour.
Frost.