If you don't mind the informal setting, this unpretentious back-alley izakaya is a great place to explore the mysterious delights of horsemeat sushi and other raw-meat delicacies. The ten-piece Kagurazaka sushi platter (Y3200) is a good starting point - it includes a few different cuts of horse along with lightly seared chicken and raw wagyu beef, all prepared as sushi.
If you want to supplement with individual pieces, the a la carte menu offers beef, chicken and lamb options as well as several cuts of horse. We can whole-heartedly recommend the rich "foie gras" sushi. To balance your diet and complement the meaty fare, you can choose from a selection of fresh vegetable dishes - ripe avocado sashimi (with pungent wasabi), raw turnip chunks and crisp cucumbers served with miso paste.
Drinks are reasonably priced and include a few premium sake brands as well as beer and shochu. Nikuzushi is located in the middle of an ancient-looking alleyway full of tiny drinking spots. There are around six counter seats on the ground floor and three small tables upstairs, reached via a steep and narrow stairway. Although it may seem like a casual, walk-in kind of spot, reservations are recommended if you're visiting at dinnertime.
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.