Start by slicing the chicken breast into thin strips to ensure quick, even cooking. Slice your bell peppers, julienne the carrot, and chop the broccoli into bite-sized florets. Mince the garlic and ginger finely, and chop the green onions for garnish.
Bring a pot of water to a boil and cook the stir-fry noodles according to package instructions. Drain and set aside, tossing with a little oil if you want to prevent them from sticking.
Heat the vegetable oil in a large skillet or wok over medium-high heat. Add the sliced chicken and cook, stirring frequently, until golden brown and cooked through, about 5-7 minutes. Remove the chicken from the pan and set aside.
In the same skillet, add the garlic and ginger and cook for about 30 seconds until fragrant. Then add the bell peppers, broccoli, and carrots. Stir-fry for 3-5 minutes, until the vegetables are just tender but still crisp.
Return the cooked chicken to the skillet with the vegetables. Add the teriyaki sauce and stir to coat everything evenly. Then add the cooked noodles and toss gently to combine and heat through.
Transfer your Teriyaki Chicken Noodle Stir-Fry to plates or bowls. Sprinkle with chopped green onions and sesame seeds for a finishing touch. Serve immediately and enjoy!