I went to a Pizza place close to the Met a few years ago after I read a short review in the NY Times. I can't remember which street but it was close to Madison Ave - just west of it a few steps I think. It had very thin crust, maybe a couple of tables inside, maybe not - it was small. I think it must be close to a private school because there were a few students there too.
Anyone know which one I'm talking about? I could go up and down Madison and keep looking west but I might miss it by a street and I don't even know if it's still there. It was great to find a cheap place close to the museum.