Bring a pot of lightly salted water to a boil. Add the noodles and cook as the label directs. Reserve 3 tablespoons of the cooking water, then drain the noodles and rinse under cold water. Meanwhile, mix the soy sauce and oyster sauce in a small bowl. Put the pork in another bowl and toss with 1 tablespoon of the soy sauce mixture. Heat 1/2 tablespoon vegetable oil in a large skillet over medium-high heat. Add the eggs; cook, without stirring, until set, 1 minute. Flip and cook 30 seconds, then transfer to a cutting board and cut into strips. Heat the remaining 2 tablespoons vegetable oil in the skillet. Add the pork and stir-fry until golden but not fully cooked, about 2 minutes. Transfer to a plate. Add the scallions, ginger and garlic to the skillet and stir-fry 30 seconds. Add the broccoli slaw and bell pepper and stir-fry 4 more minutes. Return the pork to the skillet and add the noodles, the reserved cooking water and the remaining soy sauce mixture. Stir-fry until the pork is cooked through, about 2 more minutes. Stir in the egg.