Copycat Panda Express Chow Mein

Name: Copycat Panda Express Chow Mein
Ingredients: 3 (5.6-oz.) packages fresh yakisoba noodles or 1 lb. dried wheat noodles; 0.5 c. reduced-sodium soy sauce; 0.5 c. sesame oil; 1 tbsp. rice vinegar; 0.25 tsp. white or black pepper; 1 tbsp. granulated sugar; 1 tbsp. oyster sauce; 1 tbsp. vegetable or canola oil; 0.5 small head green cabbage, thinly sliced (about 4 c.); 4 large celery stalks, sliced on an angle (about 2 c.); 0.5 medium white onion, diced (about 1 c.); 3 cloves garlic, minced or grated; 1 tbsp. minced or grated fresh ginger