Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Drain and rinse the chickpeas, then pat them extremely dry with a clean kitchen towel to ensure they crisp up properly.
Cut the chicken breast into uniform 1-inch cubes and slice the red bell pepper into thin strips.
In a large mixing bowl, combine the chicken, chickpeas, broccoli florets, and bell pepper strips.
Drizzle the olive oil over the mixture and sprinkle with garlic powder, smoked paprika, sea salt, and black pepper.
Toss everything together until the ingredients are evenly coated in oil and spices.
Spread the mixture in a single layer on the prepared baking sheet, ensuring nothing is overcrowded.
Roast for 20 to 25 minutes, tossing the ingredients halfway through, until the chicken is cooked through and the chickpeas are golden and crisp.
Divide into bowls and serve immediately while hot.