01 - Set the oven to 425°F and line a large sheet pan with parchment paper or foil for easy cleanup.
02 - Whisk together harissa paste, olive oil, lemon juice, minced garlic, cumin, smoked paprika, kosher salt, and black pepper in a large mixing bowl.
03 - Pat chicken thighs dry, add to the marinade, and toss until thoroughly coated.
04 - Add chickpeas, red onion wedges, sliced bell pepper, and zucchini rounds to the bowl with the remaining marinade and toss until evenly coated.
05 - Place chicken thighs skin-side up and arrange the vegetables and chickpeas evenly around them on the prepared pan.
06 - Roast in the oven for 30 to 35 minutes until the chicken reaches an internal temperature of 165°F and vegetables are golden and tender.
07 - For extra crispy skin, broil the chicken for an additional 2 to 3 minutes.
08 - Remove from the oven, sprinkle with chopped fresh cilantro or parsley, and serve with lemon wedges.