San Francisco's thing for upscale pizza has gone so far beyond fad — trend-starter Pizzetta 211 dates back to 2004, people — that it's practically a social movement. There's no secret why pizza is popular with customers: It's populist. With the exception of the gluten-free and the cheese-averse, everyone takes to pizza. Vegetarians and sausage freaks, as well as food snobs with picky preschoolers, can all dine peaceably together, sometimes even on the same pie. Not long ago, "West Coast" pizza used to be a derogatory term, and now it's a bona fide style characterized by crisp, delicate crusts; seasonal, local vegetables; and house-cured or... More >>>