serve as toppings with the noodles. From wikipedia:  http://en.wikipedia.org/wiki/Mandu_(dumpling) Mandu  are  dumplings  in  Korean cuisine . They are similar to  pelmeni  and  pierogi  in some  Slavic cultures. The name is a cognate to the names of similar types of meat-filled dumplings in Central Asia, such as Turkish  manti , Kazakh  manty