Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Dice the chicken breast into 1-inch cubes and pat them dry with a paper towel to ensure even browning.
Rinse and drain the chickpeas, then pat them thoroughly dry; this is the secret to getting them truly crispy.
In a large mixing bowl, combine the chicken, chickpeas, broccoli florets, and sliced red bell pepper.
Drizzle with the extra virgin olive oil and sprinkle with garlic powder, smoked paprika, sea salt, and black pepper.
Toss everything together until the ingredients are well-coated in the oil and spices.
Spread the mixture in a single layer on the prepared baking sheet, ensuring nothing is overcrowded.
Roast for 20-25 minutes, tossing halfway through, until the chicken is cooked through and the chickpeas are golden.
Remove from the oven and immediately drizzle with fresh lemon juice while still hot to brighten the flavors.
Transfer to a bowl and serve warm.