When you mention "sushi" vegetarian and vegan options may not be the first ones to come to mind, but they are common and offer a refreshing dining experience.
Avocado
The creamy texture of avocado enriches the sushi rice flavor. Often called the "butter of the garden," a slice of avocado rests on a log of rice and is carefully wrapped with a thin strip of nori. Sometimes there's a sprinkle of sesame seeds on the avocado, creating a subtle nutty flavor.