01 - Whisk together olive oil, lemon juice, garlic, cumin, smoked paprika, oregano, salt, and pepper in a large bowl. Add chicken cubes and toss to coat evenly. Refrigerate for at least 20 minutes or up to 2 hours for maximum flavor penetration.
02 - Combine chickpeas, tahini, lemon juice, olive oil, garlic, cumin, and salt in a food processor. Blend until completely smooth, adding water one tablespoon at a time until desired creamy consistency is achieved. Taste and adjust seasoning as necessary.
03 - Heat grill or grill pan to medium-high temperature, approximately 375-400°F.
04 - Thread marinated chicken pieces onto skewers, leaving slight space between pieces for even cooking.
05 - Grill skewers for 12-15 minutes, turning every 3-4 minutes, until chicken reaches internal temperature of 165°F and develops light char marks.
06 - Spread prepared hummus evenly across serving platter. Arrange grilled chicken skewers on top. Garnish with fresh parsley and serve with lemon wedges, warm pita bread, and fresh vegetables if desired.