Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Cut the chicken breast and baby potatoes into uniform 1-inch pieces to ensure they cook evenly.
In a large mixing bowl, whisk together the extra virgin olive oil, minced garlic, rosemary, thyme, sea salt, and black pepper.
Add the chicken, potatoes, broccoli, carrots, and bell peppers to the bowl, tossing thoroughly until every piece is well-coated in the herb oil.
Spread the mixture in a single layer on the prepared baking sheet, ensuring the pieces aren't overcrowded so they roast rather than steam.
Bake for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the potatoes are fork-tender.
Remove from the oven and immediately drizzle with fresh lemon juice to brighten the savory flavors before serving.