Cut cucumber and carrot into long thin strips.
Drain the oil from the canned tuna using a strainer.
Mix the drained tuna with mayonnaise and a pinch of salt.
Beat the eggs, add a little salt, cook into a thin omelette, and cut into long strips.
Place a sheet of seaweed on the bamboo mat and spread a thin layer of rice over it.
Layer cucumber, carrot, egg strips, and tuna mayo on top of the rice.
Roll up the kimbap tightly and seal the edge with a bit of water.
Cut into bite-sized pieces.