Cook the Noodles: Boil the noodles according to package instructions. Drain and set aside.
Prepare the Sauce: In a small bowl, whisk together soy sauce, honey, rice vinegar, sesame oil, garlic, and ginger. Set aside.
Cook the Steak: Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat. Add the steak slices and cook for 2-3 minutes until browned. Remove and set aside.
Cook the Shrimp: In the same pan, add another tablespoon of oil. Cook the shrimp for 1-2 minutes per side until pink and opaque. Remove and set aside.
Stir-Fry the Vegetables: Add bell peppers and broccoli to the pan. Stir-fry for 2-3 minutes until slightly tender.
Combine Everything: Return the cooked steak, shrimp, and noodles to the pan. Pour in the teriyaki sauce and stir well. Add the cornstarch slurry and cook for another 1-2 minutes until the sauce thickens.
Garnish & Serve: Sprinkle with green onions and sesame seeds. Serve hot and enjoy!