Masterchef John Zhang shares EASY Beef Stir Fry dishes that have plenty of flavor and filled with tender and juicy beef. Get the dishes NOW. #beef #stirfry #chinesecooking. Tips for Tender and Juicy Beef Stir Fry. – Select a cut of steak such as flank steak or better. – Slice Against The Grain. Inspect the steak and search for long muscle fibers. Cut Thin Slices. – Marinate with egg and cornstarch. Stir-fried Beef with Oyster Sauce. Oyster…