Wasabi is simply japanese horseradish. Often coloured green, it is used as a condiment for sushi and sashimi.
Domburi
Gomaae
Gyoza
Korokke
Mushrooms
Nikujaga
Okonomiyaki
Ramen
Rice
Sashimi
Seaweed
Soba
Soya Bean
Sushi
Tempura
Udon
Yakitori
Wasabi