Cafe Milano is another gem in Downtown Pittsburgh. They've got a fairly extensive menu here--calzones, hoagies, signature sandwiches, salads, gyros, and of course a very comprehensive pizza menu.
Milano's really good for a quick lunch. They have pizza by the slice here and individual mini-pizzas too. I ordered two slices, each with pepperoni and mushrooms. I figured if I couldn't finish both, I could have one tomorrow. And as we all know, pizza's great the 2nd day. Good pizza here, and if you can tear yourself away from work for a proper lunch hour, do like I did and get a couple of slices or a sandwich to go and take it over to a nearby plaza for a little al fresco dining.