2丁目, 北沢 · Tokyo
2-12-15 Kitazawa, Setagaya-ku, Tokyo 155-0031, Japan
An American-style café in Shimokitazawa's Reload complex serving thick-cut sagari beef steak sandwiches with grain mustard sauce on toasted shokupan, plus bottled American beers.
Haven't been here myself — came recommended from someone I trust.
Akihabara gyudon institution since 1979, serving generously sized beef bowls and sukiyaki-style beef plates, famously cited as the inspiration for the gyudon shop in Steins;Gate.