Season the chicken with salt and pepper, then add 1/2 cup of cornstarch/potato starch, after that cook it in a hot wok/pot for 4 min per side then reserve.
In the same pot add ginger, garlic and let it cook until tender
Add Veggies , saute them then add chicken , noodles , soy sauce, sugar , stir.
Mix the tbsp of cornstarch/Potato starch with the chicken stock or water then add it to the stir fry, bring to a boil and finish the dish some sesame oil.