Prepare the Vegetables:
Wash and cut all the vegetables as described. Pat them dry with a paper towel to remove excess moisture.
Preheat the Grill:
Preheat your grill to medium-high heat. If using a grill pan, heat it over medium-high heat on the stovetop.
Season the Vegetables:
In a large mixing bowl, toss the sliced zucchini, bell peppers, eggplant, and red onion with olive oil, salt, pepper, and dried oregano until evenly coated.
Grill the Vegetables:
Place the vegetables on the grill and cook for about 4–5 minutes per side, or until tender and nicely charred. Use tongs to flip them and ensure they cook evenly.
Make the Dressing:
While the vegetables are grilling, whisk together the balsamic vinegar and lemon juice in a small bowl. Drizzle this over the grilled vegetables once they're done.
Assemble the Salad:
Transfer the grilled vegetables to a serving platter. Drizzle with the balsamic and lemon dressing, and garnish with fresh chopped basil or parsley.
Serve:
Serve the Grilled Summer Vegetable Salad warm or at room temperature as a delicious and healthy side dish to complement any meal.