Remove excess moisture from the tofu with a kitchen towel and crumble it.
Drain the oil from the tuna using a strainer.
In a bowl, combine the tofu, tuna, ssamjang, chopped onion, and chopped Cheongyang pepper.
Mix all ingredients evenly.
Add a little olive oil to a pan and stir-fry the mixture to evaporate excess moisture.
Transfer the finished tofu tuna ssamjang onto a plate and serve.