Step 1

Cut chicken thigh into bite-size pieces and marinate with soy sauce, oyster sauce, corn starch, and black pepper; set it aside while you prepare the rest of the ingredients.

Step 2

Blanch the chow mein noodles for 30-60 seconds, rinse with cold water, drain and set aside.

Step 3

Mix soy sauce, vegetarian oyster sauce, sesame oil, sugar, black vinegar, and black pepper in a bowl.

Step 4

In a large pan, drizzle in a generous amount of oil and turn the heat to medium-high. Add in the chicken and saute for 2-3 minutes.

Step 5

Add in sliced onions and shiitake mushroom, stir-fry for 2-3 minutes.

Step 6

Next, add in sliced carrots and celery, saute for 1-2 minutes, add in sliced cabbage, and saute for another 2-3 minutes.

Step 7

Add the noodles, drizzle on the sauce, and saute on high heat for 2-3 minutes.

Step 8

Finally, add in green onion and saute on high heat for 1 minute. (optional)