Gyu Don
Best restaurants you can enjoy Gyu Don [牛丼:Gyudon] in Japan! Gyu Don is a type of rice bowl composing of sliced beef and onion stewed with sweet-salty sauce. Gyu Don is getting to be fast food though it has been familiar to Japanese since the time Samurai was. You can reasonably eat it at Japanese chain restaurants like Yoshinoya, Sukiya and Matsuya.