GYUDON with pork miso soup.

I went to a restaurant which was mainly served GYUDON, a bowl of rice topped with cooked beef and vegetables. Long time ago there was the mad cow disease in the world. That kind of restaurant used to serve BUTADON, a bowl of rice topped with cooked pork and vegetables, instead of GYUDON at that time. Recently the restaurant's waiters are foreigner, it seems they are from South East Asian country,
I think.