. Donburi are sometimes called  sweetened  or  savory  stews  on rice . Takagi:  There are some various types of Donburi, they are Oyakodon ( simmered  chicken , egg and  onion  on rice) ... Katsudon ( breaded deep-fried  pork  cutlets, onion, and egg on rice) ... Tekadon ( thin-sliced raw tuna over