Preheat the oven to 325°F (165°C).
In a mixing bowl, combine softened butter, rosemary, thyme, sage, garlic, lemon juice, lemon zest, salt, and pepper to form a herb paste.
Carefully loosen the skin on the turkey breast and legs using your fingers or a small spatula. Rub half of the herb paste under the skin, ensuring even coverage.
Rub the remaining herb paste all over the outside of the turkey.
Stuff the cavity of the turkey with the quartered onion, carrot chunks, and celery chunks for flavor.
Place the turkey breast side up on a roasting rack in a roasting pan. Pour the chicken broth into the bottom of the pan.
Roast the turkey in the preheated oven, basting every 30 minutes with the pan juices. Cook for about 13-15 minutes per pound, or until the internal temperature reaches 165°F (75°C) in the thickest part of the thigh.
Once cooked, remove the turkey from the oven and let it rest for 20-30 minutes before carving. This allows the juices to redistribute.