Romina
Yotsuya: Peruvian
Romina (Yotsuya: Peruvian)
Romina
Open 5-11pm. Closed Wednesdays.
Sun: Open Sundays

Brilliant Peruvian food and drinks at relatively inexpensive prices. For variety, they also serve a smattering of dishes from all across Latin America. Try their vanilla flan for dessert, if you still have room. There's also a big lunch menu. (Avoid Sunday nights if you don't like big crowds.)

Yotsuya
Shinjuku-ku, Yotsuya 1-7-27, Central Yotsuya Bldg. 2F.
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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 Bento.com.
 
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Venue listing from Bento.com5 Star Rating: highly recommended