Bring a pot of water to a rapid boil. Add the noodles and cook according to package instructions, about 3-5 minutes. Drain and set aside.

Sprinkle salt and pepper over the sirloin steak. Heat 1 tablespoon of vegetable oil in a large pan over medium-high heat.

Add the seasoned steak to the hot pan. Sear for about 2-3 minutes until golden brown. Remove and set aside.

In the same pan, add another tablespoon of vegetable oil. Toss in the shrimp and cook for 2-3 minutes until pink and opaque. Remove with the steak.

Add minced garlic and grated ginger to the pan. Sauté for 30 seconds until fragrant.

Add sliced bell pepper and snap peas. Stir-fry for 2-3 minutes until vegetables are tender-crisp.

Return the cooked steak and shrimp to the pan with the vegetables. Add the cooked noodles and gently fold together.

Pour the soy sauce, oyster sauce, and sesame oil over the mixture. Toss until well combined and heated through, about 1-2 minutes.

Stir in the chopped green onions and toss again for 1-2 minutes.

Remove from heat and transfer to serving plates. Garnish with sesame seeds if desired.