Prepare the seaweed sheets.
Mix rice with salt and sesame oil.
Beat eggs and make a thin omelet.
Strain the tuna in a sieve to remove the oil.
Julienne cucumber and carrot.
Spread a thin layer of rice on the seaweed sheet.
Place the omelet, tuna, cucumber, and carrot on top of the rice.
Roll it tightly.
Cut into bite-sized pieces.