Concierge.com's insider take:

A spuntino, according to Frankie Falcinelli's nonna, is a snack, and also the place that serves them—and when this Frankie and the other one, Frankie Castronovo, heard that, they had the name for their brick-walled, tin-ceilinged, big-garden converted smithy that opened in 2004. Both Frankies have impeccable Italian-American roots; they've also done stints behind the stove in both achingly hip (specifically Falcinelli's days at Moomba) and perfectly serious (Aureole, Bocuse, Bouley) restaurants. All this has led to the neighborhood spot so ideal that half of Manhattan, the hip half, has adopted the neighborhood (Chris Robinson threw a birthday party for his now ex-wife Kate Hudson here). Roasted vegetables, plates of cheeses and salumi, amazing sandwiches on Sullivan Street focaccia, superb salads with microgreens, a few hot dishes such as meatballs in "gravy" (Italian-American for marinara) and pork braciola (braised pork shoulder slow-cooked for four hours in spices)—all the food is perfect of its kind, i.e., rustic, fresh, shareable. Add a short, sweet, Italian wine list and good cocktails…and you'll probably have to wait for a table (unless, like some smart locals, you go at 11:30 am or 5:30 pm—it's open all day).

Open daily 11 am to 11 pm.