01 - Preheat the oven to 425°F.
02 - Remove the chicken giblets, pat the chicken dry with paper towels, and place it on a rack in a roasting pan.
03 - Rub the chicken all over with olive oil, salt, and black pepper.
04 - Stuff the cavity with the lemon halves, garlic cloves, and sprigs of rosemary, thyme, parsley, and sage.
05 - Arrange the onions, carrots, and celery around the chicken in the roasting pan.
06 - Tie the legs together with kitchen twine and tuck the wing tips under the body.
07 - Roast for 1 hour 15 minutes, or until the juices run clear when you cut between the leg and thigh, and a thermometer inserted into the thickest part of the thigh reads 165°F.
08 - Baste the chicken with pan juices halfway through roasting if desired.
09 - Remove from oven, tent loosely with foil, and let rest for 10 minutes before carving.
10 - Serve with the roasted vegetables and pan juices.