Drain the oil from the tuna using a strainer.
Slice cucumber and carrot into thin strips, sprinkle with salt, and squeeze out excess moisture.
Beat the eggs, cook them into a thin omelet, and slice into strips.
Place a sheet of seaweed on a bamboo mat and evenly spread rice over it.
Top the rice with tuna, cucumber, carrot, egg strips, pickled radish, and mayonnaise.
Roll the kimbap tightly.
Cut into bite-sized pieces.