Finely chop tofu, onion, green onion, and Cheongyang chili pepper.
Drain the oil from the canned tuna and set aside.
Heat oil in a pan and stir-fry green onion, onion, and Cheongyang chili pepper.
Add tuna and tofu, mash them, and stir-fry together.
Beat the eggs and add them to the pan, mixing well as they cook.
Adjust the seasoning and finish with salt or pepper.