What is califonia roll?

California roll is a sushi roll that originated in California in the 1970s. It is made with crab meat, avocado, and cucumber, rolled in sushi rice and seaweed sheets. The exterior of the roll is often rolled in sesame seeds or tobiko (flying fish roe). The California roll is one of the most popular sushi rolls in the world, and it is known for its mild flavor and ease of eating. It is commonly served as an appetizer or as part of a larger sushi platter. Some variations of the California roll also include other ingredients such as shrimp, eel, or cream cheese.