Taste of Sushi rolls

Fillings of Sushi rolls can be any vegetables, meat, fish, and etc. The sushi rolls with vegetables are healthy and looks pretty but the taste is not satisfactory.
California rolls look good and delicious. How California rolls were invented who was the creator? Searching internet, I found the history of California rolls at SushiEncyclopedia, wikipedia, SushiBar.com ( This site has a lot of information and good recipes.) and New York Times. Sushi Chef, Ichiro Mashita, at Kyoto Kaikan invented California rolls in the 70’s. California Sushi rolls were the first fusion Sushi which was made by adding American ingredients into Traditional Japanese Sushi. Before the California sushi rolls, Sushi was made of only Japanese ingredients.
The chef had difficulty finding fresh Toro which is the fattest part of Tuna and started experimented with avocado. American people have never eaten raw fish 70’s. Some Americans are disgusted an idea of eating raw fish. Chef Mashita used avocado for its oily texture to substitute fatty texture of Toro and Imitation crab for its fresh taste of fish. The imitation crab’s official name is crab flavored imitation crab cake and is made of steamed white fish with crab juice and red coloring to make look like real crab.
American people didn’t like texture, color and taste of sea weed, Nori in Japanese. California rolls are made in-side out, Uramaki in Japanese, to hide Nori inside of the rice.
California roll seems to be the derivation of Tekkamaki which is Toro filled Nori-Maki, Nori rolled in Japanese, Sushi rolls.
The first California roll fillings consist of only Avocado and Imitation crab. The first California roll fillings consist of only Avocado and Imitation crab. Later Julianne cucumber and Mayonnaise were added to the fillings.
If this is the formula to select successful fillings for Sushi roll, the filling selections will be a fatty and rich ingredient for texture, a ingredient to substitute fresh seafood flavor, and cucumber or to neutralize. Cucumber may not be necessary because new Sushi eaters don’t consider Avocado as overpowering aroma. Mayonnaise also can be optional but enhance the taste of low quality imitation crab.
Considering Seattle Sushi roll, the fillings are cream cheese, smoked salmon, and cucumber.(I am not sure cucumber part.) Yes. The formula applies to the Seattle roll.
There is a disturbing fact. It was about the inventor of California Sushi roll. He must have been a very competent and talented Sushi chef. He was the pioneer of American Sushi culture. Unfortunately he went to jail and died there.