These skewers are a great way to enjoy halibut and vegetables together. The halibut is cut into cubes and marinated in a mixture of olive oil, lemon juice, garlic, and herbs. The vegetables can include bell peppers, onions, zucchini, and cherry tomatoes. The skewers are grilled until the halibut is cooked through and the vegetables are charred. This dish is perfect for a summer barbecue or a healthy dinner option.