01 - In a large mixing bowl, whisk together the olive oil, minced garlic, grated Parmesan, lemon juice, Italian herbs, salt, black pepper, and red pepper flakes until well combined.
02 - Add the chicken cubes to the marinade and toss thoroughly to coat every piece evenly. Cover the bowl and refrigerate for at least 30 minutes, or up to 2 hours for deeper flavor penetration.
03 - Preheat the grill to medium-high heat. If using wooden skewers, soak them in water for at least 20 minutes beforehand to prevent burning during cooking.
04 - Thread the marinated chicken pieces onto skewers, leaving a small gap between each cube to ensure even, consistent cooking on all sides.
05 - Place the skewers on the preheated grill and cook for 5 to 7 minutes per side, turning once, until the chicken is cooked through and lightly charred on the edges.
06 - Transfer the skewers to a serving platter. Sprinkle generously with chopped fresh parsley and additional grated Parmesan cheese. Serve hot with lemon wedges alongside.