Rinse the tofu noodles under running water and drain them well.
Finely chop the pork and onion.
Heat oil in a pan and sauté the pork and onion.
Season with soy sauce, oyster sauce, and sugar to make the sauce.
Add the tofu noodles and stir-fry well with the sauce.
Transfer to a bowl and garnish with green onion, seaweed flakes, and sesame seeds.