In teh grand scheme of things, WDW does not have much in the way of exotic foods. What they do have is toned down to mass market tastes. They have things such as game meats, but "safe" game meats. Nothing that is overly gamey or would cause most people to be offended or squemish. The meat they offer is major muscle meat - you don't see organs, entrails, or parts of the face (The one tounge dish somebody mentioned suprised me - that is not a WDW type item). I have had veal cheeks at WDW, but that was at V&A, so that hardly counts.
I think, as far as exotic items go, WDW is more suited to hard to obtain items. You can get Copper River Salmon, in season, at Artist Point. Copper River Salmon is very hard to find in any restaruant on the East coast. The fact that they can put it in the menu for 4 or 5 weeks straight is very impressive. I have also had Dover Sole (real Dover sole, caught in the English Channel) at WDW - but again that was at V&A. Dover Sole (from England) is also something that is as rare as hens teeth in the US.
-dave