Tuna Onigiri, also known as Tuna Rice Ball, is a popular Japanese snack made with seasoned rice and a filling of tuna. It is a convenient and portable dish that can be enjoyed on the go. The rice is flavored with soy sauce and salt, giving it a savory taste, while the tuna adds a delicious umami flavor. Tuna Onigiri is often wrapped in a sheet of nori (seaweed) for added flavor and texture. It is a simple yet satisfying dish that is perfect for a quick and tasty snack or lunch.