Cook ravioli to desired doneness as directed on package. Drain; cover to keep warm.
Meanwhile, spray large nonstick skillet with nonstick cooking spray. Heat over medium-high heat until hot. Add zucchini and onion; cook and stir 3 to 4 minutes or until vegetables are crisp-tender.
Add tomatoes and olives; cook and stir 2 to 3 minutes or until thoroughly heated.
Add cooked ravioli; stir gently to mix. Cook over medium heat for 3 to 4 minutes or until sauce is of desired consistency, stirring occasionally. Sprinkle with cheese.