01 - Combine olive oil, lemon juice, minced garlic, cumin, smoked paprika, oregano, salt, and black pepper in a large bowl. Add chicken cubes and toss to coat evenly. Marinate for at least 20 minutes, or refrigerate up to 2 hours for deeper flavor infusion.
02 - Blend chickpeas, tahini, lemon juice, olive oil, garlic, cumin, and salt in a food processor until completely smooth. Add water one tablespoon at a time, processing between additions, until reaching a creamy spreadable consistency. Taste and adjust seasoning as desired.
03 - Preheat grill or grill pan to medium-high heat, approximately 400°F. If using wooden skewers, soak in water for 30 minutes prior to use to prevent burning.
04 - Remove chicken from marinade and thread pieces onto skewers, leaving slight space between pieces for even cooking. Discard remaining marinade.
05 - Place skewers on preheated grill and cook for 12-15 minutes, turning every 3-4 minutes, until chicken reaches internal temperature of 165°F and develops light char marks on all sides.
06 - Spread prepared hummus evenly across a serving platter. Arrange grilled chicken skewers on top of hummus bed. Sprinkle with fresh parsley and serve immediately with lemon wedges, pita bread, and fresh vegetables on the side.