1. Combine oil and next 5 ingredients in a large bowl, stirring with a wire whisk. Add vegetables; toss gently. Cover and let stand 1 hour, tossing occasionally.
2. Prepare grill.
3. Drain vegetables, reserving marinade. Thread vegetables alternately on 5 (10-inch) skewers. Place skewers on grill rack coated with cooking spray; cover and grill 12 to 14 minutes or until vegetables are tender, turning once and basting with reserved marinade.
carbo rating: 11