You can eat a remarkable hamberg steak at Gassho-zukuri(a traditional architecture with principal ridgepole of Japan) in Tokyo.
This restrant was built in the Shirakawa-go 300 years ago.
The cheapest course is from 3,000 yen, but foods have the value enough.
Especially the humberg steak made in the Japanese beef, and, as for the softness and the taste, there is a notable thing.
TEL:042-489-8844
FAX:042-489-8844
OPEN 11:30~15:00(L.O 13:00) 17:30~21:30(L.O 19:30)
CLOSED in Tuesday
CARD:JCB,AMEX
http://shiroganetei.com/index.html