A Rack of Lamb is truly special, as it's the entire rib section from one side of a lamb (this would be similar to the Prime Rib from a cow, but obviously much smaller).
Rub with you favorite garlic and herb mixture, allow the meat to come to room temperature, then roast in a 425-450 oven until the internal temperature is 125-135. Remove from the oven, let rest, then squeeze some fresh lemon juice over it before slicing.