Creating Chicken Lo Mein is easy when you follow these step-by-step instructions:

1. Cook the Noodles: Bring a pot of salted water to a boil and cook the egg noodles according to package instructions. Drain and set aside.
2. Heat Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
3. Cook Chicken: Add the sliced chicken to the skillet and stir-fry for about 5-7 minutes, or until cooked through and no longer pink. Remove the chicken from the skillet and set aside.
4. Stir-Fry Vegetables: In the same skillet, add the mixed vegetables. Stir-fry for 3-4 minutes until they begin to soften.
5. Add Garlic and Ginger: Stir in the minced garlic and ginger. Cook for an additional 1-2 minutes, stirring frequently to prevent burning.
6. Combine Ingredients: Return the cooked chicken to the skillet with the vegetables. Add the cooked egg noodles.
7. Make the Sauce: In a small bowl, whisk together the soy sauce, oyster sauce, sesame oil, sugar, and black pepper. Pour this sauce over the noodle mixture.
8. Toss to Combine: Gently toss everything together, ensuring the noodles, chicken, and vegetables are well coated with the sauce.
9. Cook Further: Stir-fry for an additional 2-3 minutes until everything is heated through.
10. Garnish: Remove from heat and garnish with chopped green onions before serving.

These simple steps will guide you effortlessly through making this incredible Chicken Lo Mein dish.