1. Start by soaking your wooden skewers in water for at least 30 minutes to prevent them from burning on the grill.
2. In a medium bowl, combine the minced garlic, grated Parmesan, olive oil, lemon juice, oregano, salt, and pepper to create your marinade.
3. Cut the chicken breasts into 1-inch cubes and add them to the marinade, ensuring each piece is well-coated. Let it marinate for at least 30 minutes, or overnight for deeper flavor.
4. Preheat your grill to medium-high heat. If you’re using a grill pan indoors, make sure it’s hot before adding the skewers.
5. Thread the marinated chicken pieces onto the skewers, leaving a little space between each piece to ensure even cooking.
6. Place the skewers on the grill and cook for about 5-7 minutes per side, or until the chicken is cooked through and has a nice char.
7. Remove from the grill and let them rest for a few minutes before serving to allow the juices to redistribute.

Here’s a tip from my kitchen: If you’re cooking indoors, use a grill pan and finish under the broiler for a smoky flavor reminiscent of outdoor grilling.