Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper.
Slice the carrots into thin rounds and chop the red bell pepper into one-inch pieces.
Place the chicken breast, broccoli florets, carrots, and bell peppers onto the prepared baking sheet.
Mince the garlic clove and whisk it together with the olive oil, rosemary, thyme, sea salt, and black pepper in a small bowl.
Drizzle the herb oil over the chicken and vegetables, tossing the produce and rubbing the chicken to ensure everything is evenly coated.
Spread the ingredients into a single layer, ensuring the chicken is not covered by the vegetables.
Roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender and slightly browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy.