1 pkg. (9 oz.) refrigerated cheese tortellini, cooked, drained and rinsed
3/4 cup KRAFT Classic Caesar Dressing
2 plum tomatoes, cut into thin wedges
1 can (6 oz.) pitted black olives, drained
1/2 cup sliced red onions, separated into rings
1/4 cup DI GIORNO Shredded Parmesan Cheese
Toss all ingredients except cheese in large bowl; cover. Refrigerate at least 1 hour. Sprinkle with cheese just before serving.