Pleasant cheap dinner in East 50s (or low 60s)?
There is a restaurant on 1st ave and 59th street, SW corner, goes under three different names, Bruno's, Pasta Pesse and (something) Tratatoria. It has become our favorite moderate priced Italian Restaurant in Manhattan. Everything is perfect. The service, the food, the atmosphere, and you can hold a conversation!
Try it, you'll like it!