1In medium bowl, mix beef, soy sauce, garlic and gingerroot; set aside. In small bowl, mix sauce ingredients with wire whisk until well blended; set aside.
2In wok or 12-inch skillet, heat 1 tablespoon of the oil over high heat about 1 minute. Add beef mixture, breaking up clumps of beef with wooden spoon; cook 1 minute without stirring. Stir-fry 1 to 2 minutes or until beef is browned around edges. Transfer beef mixture to clean bowl.
3To empty wok, add remaining 1 tablespoon oil; heat over high heat about 1 minute. Add broccoli and carrots; cook 2 minutes, stirring frequently. Add 2 tablespoons water; cover and cook 2 to 4 minutes, stirring occasionally, until broccoli and carrots are crisp-tender.
4Return beef mixture to wok. Mix sauce mixture again with wire whisk to recombine; pour into wok. Stir to coat mixture with sauce. Cook 1 to 2 minutes, stirring occasionally, until sauce is thickened. Sprinkle each serving with cashews.