Return the beef to the pan with the vegetables. Pour the sauce mixture over the top. Stir well to combine and cook for another 2-3 minutes, or until the beef is cooked through and the sauce has thickened slightly.
🍚 Serve:
Serve the beef and onion stir fry hot over cooked rice or noodles. Garnish with chopped green onions and sesame seeds if desired. Enjoy your delicious stir fry!
