Yotsuya: Izakaya
Meguriya (Yotsuya: Izakaya)
Open 5-11pm (LO; Sun 4-9:20) daily.
Sun: Open Sundays

Some thirty varieties of craft sake are served by the glass in this cozy basement izakaya, accompanied by a menu of creative, sake-friendly small dishes. Sake is served in 90ml and 144ml portions (5-shaku and 8-shaku in traditional sake measuring units), so it's easy and economical to assemble your own tasting flights. The list balances popular labels with lesser-known kura, and a broad range of styles and regions represented.

The food menu is explicitly geared towards sake drinking, with a whole menu section of chinmi (exotic sake nibbles). The five-part smoked-foods plate is highly recommended, as is the roast Iberico pork and the fantastic cucumber with miso-mayonaise-wasabi dip. Budget around Y3000-4000 for dinner and drinks.

Shinjuku-ku, Yotsuya 1-8, Horinaka Bldg B1F.
東京都新宿区四谷1-8 ホリナカビル B1F

Tokyo Beyond Sushi - the guidebook
Tokyo Beyond Sushi
Explore the hidden side of Tokyo dining
Charcoal-grilled pork on skewers, udon noodles in curry-flavored soup, octopus dumplings, deep-fried beef cutlet -- there's a whole world of exciting food in Tokyo that food-loving visitors often miss out on.

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
Sister sites:
Craft Beer Bars Japan
Bars, retailers and festivals
Animal Cafes
Cat, rabbit and bird cafe guide
Where in Tokyo
Fun things to do in the big city
Neighborhood guides and top-five lists from Tokyo experts
Barking Inu
Sushi dictionary and Japan Android apps

Venue listing from Bento.com5 Star Rating: highly recommended