01 - Set the oven temperature to 350°F.
02 - Combine olive oil, lemon juice, lemon zest, garlic, rosemary, thyme, parsley, salt, and pepper in a small bowl.
03 - Pat the turkey breast dry. Gently loosen the skin and spread half of the herb mixture underneath, then rub the remaining mixture over the exterior.
04 - Place the turkey breast skin-side up on a rack set inside a roasting pan. Arrange lemon slices around the turkey and pour the chicken broth into the pan.
05 - Coat the turkey breast evenly with melted butter.
06 - Roast for 70 to 80 minutes, basting with pan juices halfway through, until the internal temperature reaches 165°F.
07 - If the skin begins to brown too rapidly, cover loosely with foil to prevent burning.
08 - Remove from oven, tent loosely with foil, and let rest for 15 minutes before carving.