This is an old Weight Watchers recipe. Super easy and yummy! And just so you know, the bars will come out of the oven all puffed up but will quickly fall once they begin to cool.
1 package angel food cake mix, about 14 1/2 oz
22 oz light fruit pie filling, blueberry
Preheat oven to 350°F. Combine ingredients. Pour batter into an ungreased, 9-inch x 13-inch baking dish; bake for 30 minutes. Cool and cut into 24 pieces.