Lazio / Roma - at Wikipedia
Recommended by VegGastronomy.net - in cooperation with European Veggie Wine Culture Network
The list is based on all relevant entries in the four professional Italian restaurant guides.
More user generated Basic information about veg* restaurants offer happycow.net Rome and tripadvisor.com.
Il Margutta RistorArte
One of the best veggie Fine Dining / Haute Cuisine restaurants in Roma and beyond!
Taverna Vegetariana
Traditional Italian vegetarian cuisine with many vegan options.
Arancia Blu
Italian vegetarian with nice vinothek
OPS! Cuccina Mediteranerra
Self-Service restaurant with designer ambiente
Le Bistrot
Highly recommended by more than 200 reviewers at tripadvisor.com