so i know certain restaurants have certain special somethings on certain nights of the week. does anyone have a good recommendation for a sunday dinner spot? going with a friend and looking for something preferably casual but interesting (chowhound-style, right?). i love most those little-known recommendations that can only really be found on this site but am willing to settle for something more mainstream as well if there is a sunday night special...back bay? south end? cambridge (central sq, inman sq...)? JP? anywhere t-accessible.