This freshly griddled bing ($1, as I recall) envelops a slender layer of pork and cabbage (other accounts say scallion, or yellow chive; I don't have an interior shot to reinforce my notes). Robert Sietsema writes that the owners are from Shenyang, a northeastern Chinese city closer to North Korea than Beijing and occupied by Japan from the early 1930s to 1945. That explains the bibimbap and sushi, which you'll also find at Han Song Ting, but doesn't excuse not nibbling on a bing while you consider your other options.
The photo below shows Han Song Ting in its current digs where, reportedly, the bing is no longer available; its previous home was the now-shuttered Roosevelt Food Court.
Han Song Ting
Main Plaza, 37-02 Main St. (37th-38th Aves.), toward the back