Cut cucumber, carrot, and bell pepper into thin, long strips.
Beat the eggs, add a pinch of salt, cook into a thin omelet, and slice into strips.
Place a sheet of seaweed on a bamboo mat and spread blanched cauliflower thinly in place of rice.
Drizzle a small amount of sesame oil over the cauliflower.
Drain the oil from the canned tuna, add mayonnaise and salt, and mix well.
Top the cauliflower with the sliced cucumber, carrot, bell pepper, omelet strips, and tuna mayo.
Roll the kimbap tightly using the bamboo mat.
Cut into bite-sized pieces.