Preheat your oven to 425°F (220°C) and prepare a roasting pan.
Peel and chop the carrots, parsnips, and red onion into uniform 1-inch chunks.
Finely mince the fresh rosemary, thyme, and garlic cloves.
Pat the chicken dry with paper towels to ensure the skin gets crispy.
In a small bowl, combine the olive oil, minced herbs, garlic, sea salt, and black pepper.
Rub the herb oil mixture thoroughly over the chicken, including under the skin of the breast if possible.
Place the vegetables in the bottom of the roasting pan and toss with any remaining herb oil.
Set the chicken on top of the vegetables and squeeze the lemon juice over the entire dish.
Roast for 45 to 55 minutes, or until the internal temperature of the chicken reaches 165°F and the vegetables are fork-tender.
Remove from the oven and let the chicken rest for 10 minutes before carving to keep the meat juicy.