Cut the cabbage into 2cm wide pieces and divide into thirds. Slice the green onion thinly at an angle.

Pat the fried tofu with a paper towel to remove excess oil, then cut it in half along the shorter side and slice into 2cm wide pieces.

Add the seasoning ingredients (water, mirin, soy sauce, and dashi powder) to a frying pan and heat over medium heat until boiling. Add the tofu, cabbage, and green onion, cover, and simmer on low heat for 5 minutes.