Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Rinse the chickpeas and pat them thoroughly dry with a clean kitchen towel to ensure they roast up crispy.
Cut the chicken breast into 1-inch bite-sized pieces and chop the broccoli and bell pepper into uniform chunks.
Place the chicken, chickpeas, broccoli, and peppers on the baking sheet and drizzle with olive oil.
Sprinkle the smoked paprika, cumin, sea salt, and black pepper over the ingredients and toss until everything is evenly coated.
Spread the mixture into a single layer and roast for 22 to 25 minutes, tossing halfway through, until the chicken is cooked through and the chickpeas are golden.
Remove from the oven and drizzle with fresh lemon juice to brighten the flavors before serving in a bowl.