Easy Weeknight Beef Stir Fry is the perfect asian-restaurant-inspired dish that you can make at home. To get delicious flavour use lots of your favourite vegetables, and of course a great sauce.  Serve this beef stir fry with white rice, egg noodles, or next to fried rice! Ingredients 1 1/2 lbs flank steak – cut across the grain into 1/4-inch strips 3 tbsp cornstarch