Georges (57th & 5th)
I used to order and go there when I lived down that-a-way in the early 2000s. It's a decent diner and just about the only game going around there. If you live in the 4th/5th Ave. part of the 'hood, and don't feel like going either over to 8th or up to the Slope, George's is your place.
My go-tos were Charlie's pizza (5th/50th-ish, no delivery, at least then), Los Pollitos (4th/59th), and Georges.