Spicy tuna rolls are a ubiquitous item on american sushi menus. Nori (dried seaweed) is filled with sushi rice and seasoned sushi-grade or sashimi-grade tuna. When eating raw fish, it is important that you buy the best quality fish available. The fish is first inspected and then given a grade by wholesalersthe best fish is given a "Grade 1" And often labeled "Sushi grade. " The japanese name for bluefin tuna (the most common sushi tuna) is maguro. Make sure you are purchasing your fish from a reputable fishmonger and if it doesn't smell or look right, don't buy it. Use your fresh fish to make sushi as soon as possible after purchasing. The seasoning that makes the tuna spicy is ichimi togarashi, which translates to "One flavor chili pepper" And consists of only ground red chili pepper. It has a mild spiciness, similar to chipotle chili peppers, and adds a nice extra kick without being overwhelmingly spicy. Ichimi togarashi is not only ideal for seasoning spicy tuna rolls but is also delicious sprinkled on scrambled eggs. Serve your homemade spicy tuna rolls with pickled ginger, wasabi, and soy sauce and black vinegar for dipping. For a light meal, serve alongside edamame or a seaweed salad.