Onigiri are the dish to order at this new Financial District lunch spot, which is already besieged by lines of office workers. Onigilly's molded brown-rice triangles are topped or stuffed with any number of fillings, from traditional salted plum to untraditional bacon, then wrapped in nori for easy consumption. Three-piece sets cost $8 and come with a salad: Much better for you than another burrito.