Just throw everything in and mix it up.
Slice the cucumber into half-moons.
Open the canned tuna and drain the oil.
Fry the egg.
Warm the rice and layer the ingredients neatly on top.
You can grill or not grill the tofu—as long as it's soft, it's good.
Make the sauce, pour it on top, sprinkle sesame seeds, and mix before eating.
If you wrap it in perilla leaves, it's GOAT.