01 - In a large bowl, whisk together the olive oil, lemon juice, garlic, oregano, paprika, salt, and pepper until thoroughly combined.
02 - Add the chicken pieces to the marinade, tossing to coat completely. Cover the bowl and refrigerate for at least 20 minutes, or up to 2 hours for enhanced flavor penetration.
03 - Preheat your grill to medium-high heat, approximately 400°F. If using wooden skewers, soak them in water for 30 minutes prior to assembly.
04 - Thread the marinated chicken, bell peppers, onions, zucchini, and mushrooms onto skewers, alternating ingredients for even cooking and visual appeal.
05 - Lightly brush the assembled kabobs with any remaining marinade to ensure maximum flavor distribution during grilling.
06 - Place kabobs on the preheated grill and cook for 12-15 minutes, turning every 3-4 minutes, until chicken reaches an internal temperature of 165°F and vegetables are tender with light charring.
07 - Remove kabobs from the grill and allow to rest for 2 minutes. Garnish with chopped fresh parsley and serve with lemon wedges on the side.