You can make your own California rolls at home! California rolls are very similar to a sushi roll and are typically made inside out. This video from Panlasang Pinoy is a perfect example of a typical California roll that you can find at an upscale Japanese sushi bar.
The recipe for the roll shown contains crab sticks, sushi nori, rice vinegar, sesame seeds, sushi rice, cucumber, avocado, sugar, and salt. It may take a few tries to get your roll just right, but stick with it because you'll be able to make these in no time!