I am not sure when this place opened - earlier in the year or more recently - but we just came across it and it looks pretty good. The prices are not crazy, and it is by "Rifrullo", the popular spot in San Niccolò. Hopefully we'll try it out for lunch soon and have more to say.
I think the map below is a tiny bit off - it isn't that far at the end of the street, but very close: