Beef Lo Mein

Name: Beef Lo Mein
Ingredients: 8 ounces lo mein noodles or spaghetti; 1/2 teaspoon kosher salt, plus more; 1/2 cup oyster sauce; 1/4 cup low-sodium soy sauce; 1/4 cup rice wine vinegar; 3 tablespoons honey; 1 1/2 pounds flank steak, chilled; 1/2 teaspoon freshly ground black pepper, plus more; 2 tablespoons plus 1 teaspoon toasted sesame oil, divided; 2 large garlic cloves, pressed with a garlic press or finely chopped; 1 1/2 teaspoons finely grated ginger; 3 scallions, thinly sliced, divided; 8 ounces snow peas; 1 medium red bell pepper, cut into 1/4-thick strips