These grilled vegetable skewers are a perfect way to surprise your guests with a delicious and healthy appetizer. You can use a variety of vegetables like bell peppers, zucchini, mushrooms, cherry tomatoes, and onions. Simply marinate the vegetables in a mixture of olive oil, garlic, lemon juice, and herbs, then thread them onto skewers and grill until tender and slightly charred. Serve them as a side dish or as a main course with some grilled tofu or halloumi cheese.