Prepare seaweed sheets for gimbap.
Mix salt and sesame oil into the rice.
Cut cucumber, carrot, pickled radish, imitation crab, and egg strips into long pieces.
Make wasabi mayonnaise.
Spread the rice evenly over the seaweed sheet.
Thinly spread the wasabi mayonnaise on top of the rice.
Place the prepared fillings on top.
Roll the gimbap tightly.
Cut into bite-sized pieces.