Prepare brownie mix according to package directions using the oil, water, and eggs.
Mix the chocolate chips into the batter and then fold in the cherry pie filling until combined.
Line a 9 x 13 inch baking pan with foil and spray with non-stick cooking spray. Spread batter into the pan.
Bake in the lined 9 x 13 inch baking pan according to package directions until a toothpick inserted in the center comes out clean. This may take a little longer than listed on the box. Cool completely on a wire rack.
Once cooled frosting this frosting and cut into 18 squares. Makes 18 brownies.