Drain and rinse the tofu noodles, then set them aside in a colander.

Crush 1 tbsp of sesame seeds and set aside.

Chop 1/2 onion and 20cm green onion into small pieces.

Heat 1 tbsp cooking oil in a wok and stir-fry the chopped onion and green onion.

Add 150g minced pork and 1 tsp black pepper to the wok, then stir-fry until the pork is cooked through.

Add 2 tbsp soy sauce, 1 tbsp oyster sauce, 2 tbsp tonkatsu sauce, 1/2 tbsp sugar, 1/2 tbsp chili powder, and 1 tbsp sesame oil to the wok.

Push the cooked pork to one side of the wok and scramble 1 egg on the other side.

Combine the scrambled egg with the pork and mix well.

Add the tofu noodles to the wok and stir-fry until well combined with the pork and seasonings.