01 - In a large mixing bowl, whisk together the olive oil, minced garlic, grated Parmesan cheese, lemon juice, dried Italian herbs, salt, black pepper, and crushed red pepper flakes until well combined.
02 - Add the cubed chicken to the marinade and toss thoroughly to ensure every piece is evenly coated. Cover the bowl with plastic wrap and refrigerate for a minimum of 30 minutes, or up to 2 hours for deeper flavor penetration.
03 - Preheat your grill to medium-high heat, approximately 375°F to 400°F. If using wooden skewers, submerge them in water for at least 20 minutes prior to grilling to prevent scorching.
04 - Remove the chicken from the marinade and thread the pieces onto skewers, leaving a small gap between each cube to promote even cooking and proper char development.
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 to an internal temperature of 165°F and exhibits a light golden char.
06 - Transfer the skewers to a serving platter and allow them to rest briefly. Finish with a generous sprinkle of chopped fresh parsley and additional grated Parmesan cheese.
07 - Serve immediately while hot, accompanied by lemon wedges on the side for squeezing over the skewers.