Rinse the rice and cook it.
Wash and julienne cucumber, carrot, spinach, and iceberg lettuce.
Fry the egg in a pan to make a soft sunny side up.
Drain the oil from the canned tuna and set aside.
Place the rice in a bowl, and add the vegetables and tuna on top.
Add gochujang (Korean chili paste) and sesame oil.
Put the fried egg on top.