Cook the Noodles: Start by boiling 8 oz of egg noodles according to package instructions. Once cooked, drain and set aside.
Prepare the Chicken: In a large skillet or wok, heat 1 tablespoon of sesame oil over medium-high heat. Add the sliced chicken breast and cook until it begins to brown, roughly 5-7 minutes. Season with salt and pepper.
Add the Flavor: Add minced garlic and ginger to the chicken, stirring for about 1 minute until fragrant.
Add the Veggies: Toss in the mixed vegetables and cook for another 3-4 minutes until they are bright and just tender.
Combine Everything: Stir in the cooked noodles, then add soy sauce and oyster sauce. Toss everything together so the noodles are nicely coated in the sauce.
Serve: Remove from heat, garnish with green onions, and enjoy your homemade Chicken Chow Mein!