Sauce:

1. To a small mixing bowl, combine all the ingredients and whisk together until fully combined. Set aside. 

Noodle Stir Fry:

1. To a large wok, or large nonstick skillet, over medium-high heat, add the oil and swirl to coat. Once the oil is beginning to smoke, add the green onion, green cabbage, celery, carrot, and bean sprouts to the wok. Season lightly with salt and stir-fry for 30 seconds - 1 minute, stirring often until the vegetables begin to develop color, have wilted slightly, but still have some crunch. 
2. Add the lo mein noodles and stir fry until heated through, around 45 seconds (take note of the noodle package directions to confirm if your noodles need to be heated prior to stir-frying).
3. Add the ginger, garlic and prepared sauce. Toss to evenly combine. 
4. Transfer cooked noodles to a bowl and garnish with thinly sliced green onion. Serve and enjoy.