1 can (6 ounces) pitted ripe olives, drained and halved
2 medium tomatoes, chopped
1 cup cubed part-skim mozzarella cheese
1/3 cup minced fresh parsley
3/4 teaspoon salt
3/4 teaspoon pepper
3/4 cup balsamic vinaigrette
1/2 cup shredded Parmesan cheese
Cook tortellini according to package directions; drain and rinse in cold water. In a large bowl, combine the tortellini, chicken, olives, tomatoes, mozzarella cheese, parsley, salt and pepper. Drizzle with vinaigrette and toss to coat.
Cover and refrigerate for at least 4 hours. Just before serving, sprinkle with Parmesan cheese and toss.