Preheat your oven to 400 degrees Fahrenheit and line a large rimmed baking sheet with parchment paper for easy cleanup.
Dice the chicken breast into uniform one-inch cubes and chop the bell pepper and zucchini into similar bite-sized pieces.
In a large mixing bowl, combine the cubed chicken, rinsed chickpeas, chopped bell pepper, and sliced zucchini.
Drizzle the extra virgin olive oil over the mixture and sprinkle with garlic powder, smoked paprika, sea salt, and black pepper.
Toss everything thoroughly until the chicken, beans, and vegetables are evenly coated in the oil and spice blend.
Spread the mixture across the prepared baking sheet in a single layer, ensuring enough space for the ingredients to roast rather than steam.
Roast in the center of the oven for 20 to 25 minutes, or until the chicken is cooked through and the vegetables are tender with lightly browned edges.
Remove from the oven and immediately drizzle with fresh lemon juice and garnish with chopped parsley to brighten the flavors before serving.