Half a can of tuna
Cut the napa cabbage into bite-sized pieces.
Drain the oil from the canned tuna and set aside.
Put the napa cabbage, tuna, onion, and chili pepper into a bowl.
Add red pepper powder, soy sauce, minced garlic, sesame oil, and sesame seeds, then mix well.
Taste and adjust seasoning with salt if needed.
Serve in a bowl and enjoy.