I recommend La Cappriccosa http://www.arapacisrestaurant.it in Rome. It's just off the Via del Corso at Largo dei Lombardi, 8. It's probably not the cheapest place in Rome but it's a long way from being expensive. The food is good quality and it is, in my opinion, excellent value for money as well as being highly accessible.

Mark Sukhija, in Zuerich