PREPARE cake mix according to package instructions using recommended amounts of oil, water and egg whites. Bake in 13 x 9-inch baking pan according to package instructions. Cool completely in pan on wire rack.
WHISK pudding mix and milk in large bowl 2 minutes. Fold in whipped topping until completely blended.
CUT cake into 1-inch cubes. Place half of cake cubes in large trifle dish or 4-quart glass bowl. Top evenly with half of pudding mixture and 4 C. berries. Top with remaining cake cubes, pudding mixture and berries.
Cover and chill until ready to serve. Garnish with mint leaves.
(1 of 16 servings)
*Percent Daily Values are based on a 2,000 calorie diet