Boil the egg noodles according to package instructions, then drain and set aside.
Heat sesame oil in a large skillet over medium-high heat.
Add sliced steak and cook until browned, about 3-4 minutes.
Remove steak from skillet and set aside.
Add shrimp to the skillet and cook until pink, about 2-3 minutes.
Add garlic, bell pepper, and carrot; stir-fry for 2 minutes.
Return the steak to the skillet, incorporating with the vegetables.
Add cooked noodles, soy sauce, and oyster sauce; toss to combine.
Season with salt and pepper to taste.
Garnish with green onions before serving.