Remove excess water from the tofu and mash it.
Drain the oil from the canned tuna using a strainer.
Finely chop the onion and green onion.
In a bowl, combine tofu, tuna, onion, green onion, egg, salt, and pepper and mix well.
Shape the mixture into bite-sized patties.
Heat oil in a pan and cook the patties until golden brown on both sides.