PREHEAT grill to medium-high. Pour 1/4 cup Kraft Signature Raspberry Vinaigrette Dressing over 6 halved fresh ripe peaches in a medium bowl; toss to coat.
REMOVE peaches from the dressing, reserving the dressing. Grill peaches 6 to 8 min. or until softened, turning occasionally and brushing with the reserved dressing.
GARNISH each with 1 Tbsp. thawed Cool Whip Light Topping and a mint leaf, if desired.