I sat at the bar / counter at Roscioli’s Salumeria con Cucina, which has an upscale wine bar vibe and nice service from a bartender. Photo from the site.
I suspect that is where you are heading. They will have various Roman pastas as well as more creative dishes.
Via dei Giubbonari, 21, 00186 Roma RM, Italy
The Antico Forno Roscioli is run by the same people, same neighbourhood. It is a bakery with a hot table, with suppli, pizza slices, sandwiches, to go.
Via dei Chiavari, 34, 00186 Roma RM, Italy
Roscioli NYC is located at 43 MacDougal St, New York, NY 10012, United States.
