Cook the Noodles: Bring a large pot of water to a boil. Add the lo mein noodles and cook according to package instructions until al dente, then drain and set aside.
Prepare the Chicken: In a large skillet or wok, heat 1 tablespoon of vegetable oil over medium-high heat. Add the sliced chicken breast and season with salt and pepper. Cook for about 5-7 minutes, or until the chicken is fully cooked and golden. Remove the chicken from the skillet and set aside.
Sauté the Vegetables: In the same skillet, add the remaining tablespoon of vegetable oil. Add the minced garlic and ginger, stirring quickly to avoid burning. Add the broccoli florets, sliced bell pepper, and snap peas. Stir-fry for about 3-4 minutes until the vegetables are tender-crisp.
Combine: Return the cooked chicken to the skillet with the vegetables. Add the cooked lo mein noodles, soy sauce, oyster sauce, and sesame oil. Toss everything together until well combined and heated through, about 2-3 minutes.
Serve: Transfer the chicken lo mein to serving bowls. Garnish with chopped green onions for an added touch of freshness.
Notes
Feel free to substitute vegetables based on your preference.