Cut shrimp and pork neck into bite-sized pieces.
Slice the onion, green onion, and spicy green chili.
Boil the noodles in boiling water and drain.
Add cooking oil to a pan and stir-fry the shrimp and pork neck.
Add the vegetables and stir-fry together.
Add the cooked noodles and stir-fry with the sauce (soy sauce, oyster sauce, etc.).
Finish with pepper and sesame oil.