Abstract: The sink includes a basin with a drain-equipped rear portion of usual depth, or of depth adequate to perform intended tasks, and a substantially shallower forward portion. The exterior bottom of the sink portion in the front of that basin is correspondingly recessed to accommodate the knees and part of the lap of a seated user. Beside the stepped basin, the sink may have a second basin, for instance wholly of conventional depth. A number of optional sink inserts are disclosed including an imperforate pan and a perforated pan, each adapted to be removably disposed in the forward portion of a basin of the sink on two laterally spaced supports. A chopping block may be removably supported in one of the pans.