Start with slicing up the lemons, oranges and onion into quarter and round circles. Slice the tip of the garlic head to open up and expose the cloves.
Coat the whole chicken wit olive oil that will work as a binder. Generously season the outside as well as the cavity with a garlic and herb seasoning. Next, stuff the chicken with some fresh rosemary, sage leaves and lemon and orange quarters.
Place a wire rack in an aluminum pan or roasting dish. Pour chicken broth in the base and place the seasoned and stuffed chicken onto the wire rack with the breasts facing up. Fill the roasting pan with the remaining citrus and onion slices, add rosemary and sage over the top.
Preheat the grill to 350 degrees and set for indirect heat. Place the entire roasting dish along with the stuffed chicken onto the grates and grill for 1hour or until the meat reaches an internal temperature of 165 degrees.
Remove the roasted citrus chicken off the grill and let it rest for 10 minutes.
Notes
Squeeze some of the citrus juices into the cavity before stuffing it. This helps bring more zestiness to the meat while it's roasting.Tent the chicken with aluminum foil if the edges are getting crispy.