Preheat the oven to 450° F. Rinse and dry the turkey breast. Oil a roasting pan.
In a small food processor, combine the lemon zest, shallot, garlic, olive oil, salt, pepper and thyme. Blend until it becomes a paste.
Loosen the skin from the turkey breast, and using your hand rub the paste over and under the skin, covering the breast completely.
Place the turkey breast in the roasting pan and roast for about 30 minutes, then reduce the heat to 350°F and continue cooking for about 1 hour 15 minutes, until nicely browned, and a meat thermometer shows an internal temperature of 160° F. Let sit for 15 minutes for the juices to redistribute, and for the internal temperature to continue to rise to 165°F before slicing.