Fun Food Holidays™ June 18th is International Sushi Day
Sushi really has nothing to do with raw fish. It refers to the vinegar-seasoned rice used in making what we refer to as sushi.
There are SO many types of this dish that are generically (often wrongly) called "sushi". Sashimi is simply slices of raw fish (often salmon or tuna). It is not served with the sushi rice. Nigiri is made from forming a handful of rice into a mound, and placing a piece of seafood over the top. Maki rolls are made from wrapping sushi rice and various fillings inside a seaweed wrapper.
Maki rolls have had the most variations created in Western society. For example, the "California Roll" is made with avocado, imitation crab and cucumber. There is also the inside-out California Roll that has the rice on the outside. The "Philadelphia Roll" has smoked salmon, cream cheese, and cucumber. the "Texas Roll" has tuna, avocado, cucumber, and is rolled in crushed French fried onions.
And that little mound of green paste next to your sushi? That's wasabi. It's goooooood!