Preheat the oven to 400 degrees Fahrenheit.
Let the chicken come to room temperature, about 30 minutes to an hour. Pat the chicken dry with paper towels.
Spread the orange zest butter under the skin of the chicken using a spatula or your fingers.
Sprinkle the top of the chicken with the spice blend.
Stuff the chicken cavity with fresh sage, rosemary, and thyme.
Truss the bird, add some olive oil or butter to the roasting pan or a large sheet tray, and place the chicken in breast side up.
Cook for the chicken uncovered for 30 minutes, then remove from the oven and check for doneness. Baste with pan juices.
Cook for another 15 to 30 minutes. The chicken is fully cooked when a meat thermometer inserted into the thicket part of the thigh has reached an internal temperature of 165 degrees Fahrenheit and the juices run clear.
Taste a small piece of the bird for seasoning, adding salt if needed. Allow the chicken to rest for about 15 minutes. Carve the chicken and serve.