Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper for easy cleanup.
Rinse and drain the chickpeas, then pat them thoroughly dry with a paper towel to ensure they get crispy.
Cut the chicken breast into bite-sized cubes and chop the bell pepper, zucchini, and red onion into similar-sized pieces.
Place the chicken, chickpeas, and all the vegetables onto the prepared sheet pan.
Drizzle the olive oil over the mixture and sprinkle with smoked paprika, garlic powder, sea salt, and black pepper.
Toss everything together with your hands or tongs until the ingredients are evenly coated in oil and spices.
Spread the mixture into a single layer, ensuring enough space between pieces for roasting rather than steaming.
Roast for 20 to 25 minutes, tossing halfway through, until the chicken is cooked through and the chickpeas are golden-brown.