Bring a large pot of salted water to a boil, add the egg noodles, and cook according to package instructions, about 5-7 minutes until al dente. Drain and set aside.

Heat vegetable oil in a skillet over medium-high heat until shimmering, about 1-2 minutes.

Add mixed vegetables to the skillet and stir-fry for 3-4 minutes until tender-crisp and vibrant.

Stir in cooked protein and minced garlic, cooking for an additional 2 minutes until heated through.

Add cooked noodles, soy sauce, oyster sauce (if using), and sesame oil. Toss for 2-3 minutes until noodles are well-coated.

Season with salt and pepper to taste, and garnish with green onions and sesame seeds if desired.