01 - Preheat your oven to 425°F.
02 - Pat the chicken dry with paper towels. Rub the skin all over with olive oil.
03 - Season the inside cavity and outside of the chicken generously with salt, pepper, and paprika.
04 - Stuff the cavity with both halves of the lemon, garlic cloves, thyme, rosemary, sage, and parsley.
05 - Spread the onion, carrots, and celery in the bottom of a roasting pan to form a base. Place the chicken breast-side up on top of the vegetables or on a rack.
06 - Tie the legs together with kitchen twine and tuck the wings under the body.
07 - Roast in the preheated oven for 1 hour 15 minutes, or until the juices run clear and a thermometer inserted into the thickest part of the thigh reads 165°F.
08 - Remove the chicken from the oven. Let it rest for 10–15 minutes before carving.
09 - Serve with the roasted vegetables, pan juices, and extra lemon wedges if desired.