Preheat the Grill: Start by preheating your grill to medium-high heat. This will ensure that your vegetables get those beautiful grill marks while retaining their natural flavors.
Prepare the Vegetables: Wash and slice the bell peppers, zucchini, eggplant, and red onion into evenly sized pieces. Trim the tough ends of the asparagus and leave the cherry tomatoes whole. Place all the vegetables in a large bowl.
Create the Marinade: In a separate bowl, whisk together the olive oil, balsamic vinegar, minced garlic, fresh thyme, salt, and black pepper. This marinade will infuse the vegetables with a burst of flavor.
Coat the Vegetables: Pour the marinade over the vegetables and toss well to ensure each piece is coated. Let the mixture sit for about 10 minutes, allowing the flavors to meld.
Grill the Vegetables: Place the marinated vegetables on the preheated grill. Cook them for about 5-7 minutes on each side or until they are charred and tender. Keep an eye on them to prevent burning.
Serve and Enjoy: Once the vegetables are beautifully chargrilled, remove them from the grill and transfer to a serving platter. Drizzle any remaining marinade over the top for an extra burst of flavor.