Hamburg steak is the specialty here, made from "Japanese black cattle," aka domestic Angus beef. The sune burg (ground shank steak) starts at ¥1430 for a reasonably hefty 170g portion, which at lunchtime comes with soup, salad and buttered-infused garlic bread.
It's served without any sauce and prepared with minimal filler, so that the flavor of the meat shines through, and indeed the patty is quite juicy, with optimal fat content. Lunch specials run until 5pm.
This book will introduce you to more than twenty of Japan's favorite specialty foods that are less well known abroad, along with a guide to the best places in Tokyo to try them and expert tips on what to order. From Bento.com.