Pizza da Donato, Sixth Avenue
Cool - this was a good one. Mentioned by the same Italian colleague of mine who recommended the absolutely wonderful La Braceria, this alfresco stand in a back alley of Sixth Avenue (Unit 8a, 6219-7562) proudly displayed all sorts of beautiful pizza by the (square) slice in a glass case from wall to wall, not to mention some other oddities like calzone, sausages, and some kind of flat pizza-like sandwiches.
While the crust of the mushroom pizza that I grabbed was a touch thicker and "doughy" than this non-bread eater prefers, it didn't really matter that much in the end, as the quality of the sauce and toppings really came through to make this a very pleasant experience. I definitely look forward to coming back to try some of the other things they have.