Combine all ingredients to marinate and velvet the meat (or tofu) and set aside.
Combine all the ingredients of your sauce. Reduce in a large nonstick skillet until suitably thickened, about 2 minutes. Transfer to another container and set aside.
Prepare your fluffy white rice or crispy chow mein if needed. Then, heat up 1 tbsp of oil in the same nonstick skillet over medium-high heat. When hot, add your protein and quickly stir fry until cooked through, about 3-4 minutes, then remove.
Add all the vegetables except the beansprouts to the now empty skillet and give them a very quick toss, 1-2 minutes (or to your preference).
Add the meats, bean sprouts, and sauce to the skillet and allow the sauce to come to a boil, 1-2 minutes. Serve immediately, with green onions and sesame seeds and chili flakes.
