1Spray grill rack with cooking spray. Heat coals or gas grill for direct heat. Mix 2 tablespoons of the oil, the garlic pepper and salt. Brush on cut sides of vegetables.
2Cover and grill zucchini, bell peppers and onion, cut sides down, 10 to 12 minutes, brushing occasionally with oil mixture, until crisp- tender.
3While vegetables are grilling, cook and drain ravioli as directed on package. Return to saucepan.
4Cut zucchini crosswise into 1/4-inch slices. Cut bell peppers into slices. Separate onion into pieces. Toss ravioli, vegetables, remaining 2 tablespoons oil, the basil and thyme; heat through. Sprinkle with cheese.