Maine-style lobster rolls are the specialty here, to eat in or take out. They also serve shrimp and crab rolls, combination sets, and lobster and crab grilled-cheese sandwiches.
Unlike most other branches around town, Luke's in Ginza has quite ample indoor seating. Sandwiches start at around Y1000, and you can get US craft beers like Sierra Nevada pale ale and Fat Tire Belgian ale for Y600 a can.
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.