If you are in Rome and in the mood to have dinner at a restaurant specialised in Neapolitan cuisine, the trattoria della barchetta in via Giovanni Pierluigi da Plaestrina could be the place to be! Famed for its delicious appetizers, first courses ( I would highly recommend the calamarata) and cookies (made in a wide variety of styles and served at the end of the meal with exquisite custards and sweet sauces), the trattoria is considered one of the best Neapolitan retaurants and dining spots in Rome.
By the way, if you are planning to go there over the weekend, remember to book a table in advance otherwise you might be turned away!