01 - In a bowl, combine olive oil, lemon juice, oregano, salt, and pepper to create the marinade.
02 - Add the zucchini and halloumi cubes to the marinade, tossing to coat evenly. Let marinate for 10 minutes.
03 - Preheat the grill to medium-high heat.
04 - Thread the marinated zucchini, halloumi, and cherry tomatoes onto skewers, alternating between each ingredient.
05 - Grill the skewers for about 10 minutes, turning occasionally, until the halloumi is golden and the zucchini is tender.