Remove excess moisture from the tofu and cut it into bite-sized pieces.
Chop the kimchi into small pieces.
Drain oil or water from the canned tuna and set aside.
Heat cooking oil in a pan and stir-fry the kimchi.
Add the tuna to the stir-fried kimchi and continue to cook together.
Add the tofu and gently mix so it doesn't break apart, cooking until heated through.
Place rice in a bowl and top with the kimchi, tuna, and tofu mixture.