01 - Preheat your oven to 400°F. Pat the chicken dry with paper towels.
02 - In a small bowl, mix together the olive oil, lemon juice and zest, minced garlic, rosemary, thyme, parsley, salt, pepper, and smoked paprika to form a marinade.
03 - Gently loosen the chicken skin over the breasts and thighs with your fingers. Rub half of the marinade under the skin and the remaining marinade all over the outside of the chicken.
04 - Stuff the cavity with the quartered lemon. Tie the legs together with kitchen twine and tuck the wing tips under the back.
05 - Place the chicken breast-side up on a rack in a roasting pan. Roast for 1 hour 15–20 minutes, or until the juices run clear and a thermometer inserted into the thickest part of the thigh reads 165°F. Baste the chicken with pan juices halfway through roasting.
06 - Remove the chicken from the oven and let it rest, loosely covered with foil, for 10–15 minutes before carving.
07 - Meanwhile, prepare the radish salad: In a bowl, whisk together olive oil, lemon juice, honey, salt, and pepper.
08 - Add the sliced radishes, cucumber, chives, and dill. Toss gently to coat.
09 - Serve the carved chicken with radish salad on the side.