Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Dice the chicken breast, bell peppers, and zucchini into uniform bite-sized pieces.
In a large mixing bowl, combine the chicken, drained chickpeas, peppers, and zucchini.
Toss the mixture with olive oil, sea salt, black pepper, garlic powder, and smoked paprika until every piece is well-coated.
Spread the ingredients in a single, even layer onto the prepared baking sheet to ensure proper roasting.
Roast for 20 to 25 minutes, or until the chicken is cooked through and the vegetables are tender with slightly charred edges.
Remove from the oven, drizzle immediately with fresh lemon juice, and garnish with chopped parsley before serving.