Cut the tofu into bite-sized pieces.
Drain the oil from the canned tuna using a strainer.
Finely chop the chili pepper, onion, and green onion.
Pan-fry the tofu until golden brown, then place it on a plate.
In a bowl, mix the tuna, chopped vegetables, doenjang (soybean paste), gochujang (red pepper paste), minced garlic, sesame oil, and sesame seeds well.
Serve the grilled tofu with the tuna ssamjang mixture on the side.