This was our third visit to Trattoria Lilli, the second one for Sunday lunch, which is the only meal they do on Sundays. It is one of the few restaurants we always try to return to when we visit Rome. As has been mentioned in other reviews, the menu is small, and the dishes uncomplicated, but they are well prepared and efficiently served. This time, my husband had penne all'arrabbiata, followed by chicken alla cacciatora. I started with fettucine with a chicken ragu, followed by a really delicious veal with artichoke sauce that I am going to try to duplicate at home. The restaurant always fills up with mostly locals, and there is no English menu. On good days, there is outdoor seating. It has been mentioned that the restaurant is difficult to find, but it really isn't if you have a good map. It IS off the beaten tourist path, but not far off, just far enough away to feel authentic. The prices are not cheap, but they are a lot lower than what you'd pay in nearby Piazza Navona or around the Pantheon.