Rinse the tofu noodles with cold water and drain in a sieve.
Slice cabbage, carrot, onion, and green onion thinly for easy eating.
Heat cooking oil in a pan and cook chicken breast.
Add the prepared vegetables and stir-fry.
Add tofu noodles and stir-fry together over medium heat.
Add yakisoba sauce and pepper, then mix and stir-fry evenly.
Serve on a plate and garnish with bonito flakes and seaweed flakes to finish.