Heat a wok-shaped skillet or large non-stick skillet over high heat.
When pan is very hot, add oil, then immediately add the snow peas, pepper, mushrooms, scallions, and bean sprouts.
Stir fry for 1 minute to flavor the oil, then add the ginger and garlic, and stir-fry 2 minutes.
Add the cooked noodles and toss to combine.
Add the soy sauce and toss the ingredients to coat noodles evenly with sauce.
Transfer the lo mein to a serving platter and garnish with a drizzle of toasted sesame oil.
