Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Mince the garlic cloves and finely chop the fresh rosemary and thyme leaves.
In a small mixing bowl, whisk together the extra virgin olive oil, minced garlic, chopped rosemary, thyme, sea salt, and black pepper.
Place the chicken breast, broccoli florets, and sliced carrots onto the prepared baking sheet.
Drizzle the garlic-herb oil mixture over the chicken and vegetables, tossing thoroughly with your hands or tongs to ensure an even coating.
Arrange the chicken in the center of the tray and spread the vegetables out in a single layer around it to ensure even roasting.
Roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender with slightly browned edges.
Remove from the oven, drizzle the fresh lemon juice over the entire tray to brighten the flavors, and serve immediately.