Combine sauce ingredients in a small bowl; set aside.

Heat oil in a large, deep frying pan or wok. Sprinkle salt and pepper over steak slices and add them to the pan. Sear on high for one to two minutes per side. Work in batches to avoid overcrowding the pan.

Add the onion, scallions, salt, garlic, and ginger. Continue to cook, stirring often, for two to three minutes, until softened slightly.

Add the broccoli, followed by the carrot, then the zucchini, and finally the baby corn, stir-frying for about a minute after each addition.

Add the prepared sauce and cooked noodles. Continue to cook for another

minute, stirring to bring everything together.