01 - In a large bowl, whisk together the olive oil, lemon juice, garlic, oregano, paprika, salt, and pepper until well combined.
02 - Add the chicken pieces to the marinade, stirring to coat thoroughly. Cover and refrigerate for at least 20 minutes, or up to 2 hours for enhanced flavor.
03 - Preheat your grill to medium-high heat, approximately 400°F.
04 - Thread the chicken, bell peppers, onions, zucchini, and mushrooms onto skewers, alternating ingredients for visual appeal and balanced flavor distribution.
05 - Lightly brush the assembled kabobs with any remaining marinade for extra flavor.
06 - Place kabobs on the grill and cook for 12-15 minutes, turning every 3-4 minutes, until chicken is fully cooked through and vegetables are tender with light charring.
07 - Remove from grill and let rest for 2 minutes. Garnish with chopped fresh parsley and serve with lemon wedges.