You can use any thing you like.i just listed some things but there are many combinations and items used to make california rolls as long as you don't use raw fish.In traditional sushi you use raw fish
For tamagoyaki look at my guide on how to make it. It's very easy.
Cut it in half and scoop out the seeds
Cut avocado in half and get the seed out
Peel the avocado and cut thinly
Cook rice as directed and let cool
If you don't have rice. You can use bread.
Spread the rice on the nori and leave an inch at the top. Here is where you would use bread if you don't have rice
Put what you want on like so
Put water on the inch of nori you left without rice and roll
Now we are going to make an outside roll. First spread the rice on like before
I hope you enjoy this guide and recipe. :)