Preheat oven to 425°F (220°C).
Pat chicken dry with paper towels. Rub with olive oil/butter.
Season inside and out with salt, pepper, and paprika.
Stuff cavity with lemon, garlic, and rosemary.
Roast on a rack in a pan for 1 hr 15 min (or until internal temp reaches 165°F in the thigh).
Rest 10 minutes before carving.
Serving Tip: Serve with roasted vegetables or mashed potatoes.