Where's the beef? Who cares - when you come to Orvieto the thing to eat is "porchetta" and they do it in so many different ways that you'll just have to try them all. Either hit a restaurant or just go to one of the butcher shops and try a bit of everything. Grab some salami, proschutto, and so on, along with a baguette for a picnic. Of course a few bottles of the the local wine is also a must. Personally, I prefer the Orvieto Abboccato, which is semi-sweet.