Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Dice the chicken breast into bite-sized pieces and slice the bell pepper and zucchini into uniform strips.
Rinse and thoroughly pat dry the chickpeas using a clean kitchen towel to ensure they get crispy during roasting.
In a large mixing bowl, combine the chicken, chickpeas, peppers, and zucchini.
Drizzle with olive oil and sprinkle with cumin, smoked paprika, garlic powder, sea salt, and black pepper.
Toss everything together until the ingredients are evenly 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.
Transfer to a bowl and serve warm, garnishing with fresh herbs if desired.