Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into uniform 1-inch cubes to ensure even cooking.
Slice the zucchini into half-moons, chop the bell pepper into 1-inch pieces, and cut the red onion into thin wedges.
Mince the garlic clove finely.
In a large mixing bowl, combine the chicken, zucchini, bell peppers, and red onion.
Drizzle the extra virgin olive oil over the mixture and add the minced garlic, dried oregano, dried thyme, sea salt, and black pepper.
Toss everything together until the chicken and vegetables are thoroughly and evenly coated with the oil and spices.
Spread the mixture in a single layer across the prepared baking sheet, ensuring pieces are not overcrowded so they roast rather than steam.
Place in the oven and roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender with slightly caramelized edges.
Remove from the oven and let rest for 2 minutes before serving warm.