For me, the part that matters most in any sushi roll is the rice. Try to use sushi rice or Japanese short-grain rice, and make sure it is properly seasoned with vinegar, sugar, and salt. That balance is what gives sushi its familiar flavour and makes even a simple filling taste right. If you would like the full method, I have shared the basic sumeshi recipe here. One small tip that helps when rolling: for slim sushi rolls like this, I often use 2/3-size nori sheets because they feel much easier to handle. It also helps to spread the rice a little more thinly than you think you need. This makes the roll easier to close neatly without the filling spilling out. In Japan, when people say “mayonnaise,” they usually mean Japanese mayonnaise like Kewpie. It is very common in Japanese home cooking and is often used for dishes like tuna mayo. You can often find it in the Asian foods aisle at supermarkets in Australia, so it is quite easy to try at home. You may notice that some Kewpie mayonnaise sold in Australia is made in Thailand. These are still official Kewpie products, but the flavour can be slightly different from the Japanese version. I hope this becomes an easy little sushi roll you can come back to for lunchboxes, light meals or quiet days at home.