Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
In a small bowl, whisk together the extra virgin olive oil, lime juice, achiote powder, ground cumin, garlic powder, sea salt, and black pepper to create the marinade.
Place the sliced bell peppers, zucchini, and red onion on one side of the prepared baking sheet.
Drizzle half of the prepared marinade over the vegetables and toss them thoroughly to ensure even coating.
Rub the remaining marinade over the chicken breast until fully coated and place it on the other side of the baking sheet.
Roast in the oven for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender and slightly charred.
Remove from the oven, let the chicken rest for 5 minutes before slicing, and garnish the entire dish with fresh cilantro.