One of the best Thai restaurants in town, Keawjai offers a large and diverse menu, with a good number of chef's specials - always a good sign. They have another, very popular branch in Shinjuku, but this Kinshicho branch seems to have a more adventurous menu, with dishes like Yellow Noodles with Grilled Red Pork in Soup, and Fried Rice with Shrimp Paste, Sweet Pork, Fried Shrimp and Egg supplementing the more usual curries and pad thai.
In addition to the hundred or so main dishes, there's also a good selection of one-plate noodle and rice dishes if you come here on your own. Budget around Y2000-2500 at dinnertime for food and drink, or Y1000 at lunchtime.
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.