Clean the bean sprouts and fish cake, then cut them into bite-sized pieces.
Add cooking oil to a pan and stir-fry the fish cake over medium heat.
When the fish cake is golden brown, add the bean sprouts and stir-fry together.
Season with soy sauce, minced garlic, and sugar.
Once the bean sprouts soften, add green onion and sesame oil.
Stir everything evenly and serve.