1 pkg. Pillsbury Plus cake mix
3 egg whites
1 c. water
1/3 c. oil
21 oz. can cherry pie filling
Whipped topping (if desired)

Heat oven to 350 degrees. Generously grease and lightly flour 13 x 9 inch pan. In large mixer bowl, blend first 4 ingredients. Beat 2 minutes at highest speed. Pour into pan. Reserve 1 cup fruit filling for topping. Spoon remaining cherry filling over cake batter, gently swirl through batter to marble. Bake for 35 to 45 minutes. Cool; spread reserved cherry over cake. Top with whipped topping.