The travel time from Bowery, Manhattan, to Williamsburg, Brooklyn, is nine minutes, in keeping with the swift wait time at this hot little sandwich shop. Incorporating the industrial feel of a subway system, this basement 50-seater turns ’em quick, thanks to the order-by-numbers takeaway counter. 1: Choose your sandwich (perhaps corned-beef-brisket-filled Reuben with traditional sauerkraut, tangy Russian dressing and Swiss cheese, sandwiched between chunky slices of rye) 2: Choose your side (maybe stand-alone mac and cheese) 3: Add pretzels and a pickle, then pay. Eat in at the communal table or sun yourself at street level.