1Heat oven to 350°F (325°F for dark or nonstick pan). Grease or spray bottom only of 13x9-inch pan.
2In large bowl, beat dry cake mix, pie filling and eggs with electric mixer on low speed 2 minutes. Batter will be thick. Spread half of the batter in pan. Mix sugar and cinnamon; sprinkle half of the mixture over batter in pan. Spread remaining batter in pan; sprinkle with remaining sugar-cinnamon mixture.
3Bake 32 to 40 minutes or until toothpick inserted in center comes out clean; cool completely. Serve with whipped topping. Store loosely covered.