Drain the oil from the canned tuna and prepare it.
Beat the eggs and make scrambled eggs.
Slice cucumber and avocado into bite-sized pieces.
Lay perilla leaves on the seaweed, then add tuna, eggs, cucumber, and avocado.
Sprinkle mayonnaise, salt, and pepper.
Roll the ingredients tightly as you would for gimbap.
Cut into bite-sized pieces.