You'll probably have to ask the original poster, the new guy(Hey, Lycos Hayes! Welcome to Osu!), but I imagine the diet of a wolf/dragon crossbreed to consist mainly of meat, meat, and more meat. The advantages of being such a hybrid come in that one can survive in many different habitats, as long as one has a place to land. As dragons are natural shapeshifters, one can place themselves in a pack of wolves, further taking advantage of the wolf side, or a flight of dragons. With a dragon's innate intelligence, one can even take the form of a humanoid, though taking some traits of that which composes the shifter - for example, a human body, but a dragon's reptilian scales and a wolf's head.
But that's my point of view on it.
So, hiya, Lycos Hayes! Welcome to Osu!