A mezze platter contains a variety of foods that are often served as appetizers in Mediterranean and Middle Eastern cuisines. Katie's version combines store-bought and homemade items, like hummus and grilled halloumi.
Mix the beef with the cilantro, salt, pepper, garlic, onions, egg and 2 tablespoons chopped parsley in a medium bowl until combined. Shape the beef mixture into 12 small, oval patties.
Preheat a grill pan or grill to medium-high heat.
Brush the grill grates with 1 tablespoon olive oil. Place the beef patties on the grill. Cook until they are firm and have grill marks, 5 to 6 minutes per side. Brush the halloumi with some olive oil. Place on the grill and cook until grilled marked and browned, 3 to 4 minutes per side.
In a small bowl, combine the cherry tomatoes, vinegar, remaining tablespoon parsley, remaining tablespoon olive oil and salt and pepper. Toss to coat.
On a large platter, arrange the tomato salad, grilled beef patties, grilled halloumi, grape leaves, hummus, tzatziki, pepperoncini and olives. Serve with the lavash or pita.