Antwerp Six: Ginza
Antwerp Six Ginza: Belgian rest/beer bar

You'll find good Belgian food (including mussels and great frites), a nice selection of beers, and convenient late-night hours from this branch of the Belgian Beer Cafe chain (they also run Antwerp Central in Marunouchi).

Antwerp Six
Chuo-ku, Ginza 8-2-1.
Open 11:30am-4am daily.
late: Open late
Sun: Open Sundays