Put imitation crab in a bowl and mix with salt and mayonnaise.
Cover a bamboo mat with plastic wrap.
Put a sheet of dried seaweed on top of the mat.
Spread sushi rice on top of the seaweed and press firmly.
Sprinkle sesame seeds over the sushi rice.
Turn the sushi layer over so that the seaweed is on top.
Place avocado and crab lengthwise on the seaweed.
Roll the bamboo mat forward,
pressing the ingredients inside the cylinder-shaped sushi.
Press firmly the bamboo mat with hands,
then remove the rolled sushi.
Cut the sushi roll into bite-size pieces.
Makes 4 rolls