Mix beef strips with beef marinade ingredients together and set aside for about 10 minutes.
In a hot, non-stick pan, saute ginger, garlic and onions with oil on high heat until lightly golden.
Add marinated beef into the pan and saute until brown and not cooked through. About 1 minute. Remove from pan and set aside.
In the same pan, add carrots, broccoli and saute for about 1 minute. Pour in ¼ cup of water, place a lid to cover and allow vegetables to steam. Turn heat down to medium as vegetable steam.
Once vegetables are soft to your liking, add the beef mixture back into the pan. Turn the heat back up to high.
Pour soy sauce and cornflour mixed with ¼ cup of water. Stir through for 1 - 2 minutes.
Serve with steamed rice.