Bring a large pot of well-salted water to a rolling boil and cook the high-protein noodles according to the package instructions. Stir once or twice during cooking so they don’t stick together. As soon as the noodles are just tender (not mushy), drain them thoroughly and set aside. If they tend to stick, toss lightly with a few drops of oil.

Heat a large skillet or wok over medium-high heat and add a small amount of oil. Once hot, add your chosen protein (such as chicken breast, shrimp, tofu, or beef strips) in a single layer. Let it cook undisturbed for a minute to develop color, then stir and continue cooking until fully cooked through and lightly browned. Season lightly with salt and pepper, remove from the skillet, and set aside so it stays juicy.

In the same skillet, add a little more oil if needed and lower the heat slightly. Add the vegetables, starting with firmer ones like carrots or broccoli, followed by quicker-cooking veggies like bell peppers, snap peas, or zucchini. Sauté, stirring frequently, until the vegetables are tender-crisp — cooked through but still vibrant and slightly crunchy.

While the vegetables cook, whisk all the teriyaki sauce ingredients together in a small bowl until smooth and well combined. Taste the sauce at this stage and adjust sweetness, saltiness, or acidity as needed so it suits your preference.

Pour the teriyaki sauce into the skillet with the vegetables and bring it to a gentle simmer. Let it cook for a minute or two, stirring constantly, until the sauce slightly thickens and becomes glossy. This step helps concentrate the flavor and ensures the sauce will cling to the noodles.

Add the cooked noodles and the reserved protein back into the skillet. Use tongs or two spatulas to gently lift and toss everything together, making sure the noodles, vegetables, and protein are evenly coated with the sauce.

Continue tossing over low heat for another 1–2 minutes until everything is heated through and the dish looks shiny and well combined. Remove from heat immediately, taste one last time, adjust seasoning if needed, and serve hot while the noodles are perfectly saucy and satisfying.