01 - Heat the oven to 425°F.
02 - Pat the chicken dry with paper towels and place it on a rack set inside a roasting pan.
03 - Rub olive oil, kosher salt, and black pepper evenly over the entire chicken, inside and out.
04 - Place the halved garlic, lemon, quartered onion, thyme, and rosemary inside the chicken cavity.
05 - Tie the legs together with kitchen twine and tuck the wing tips beneath the body.
06 - Roast the chicken for 75 to 80 minutes, or until the internal temperature of the thickest thigh reaches 165°F and juices run clear.
07 - Allow the chicken to rest for 10 to 15 minutes before carving to retain juices.
08 - Optionally, sprinkle chopped fresh parsley over the carved chicken and serve warm.