1 Combine kung pao sauce, water and red pepper in small bowl. Place beef steaks and sauce mixture in large nonstick skillet; bring to a boil. 2 Reduce heat; cover tightly and simmer 1-1/4 to 1-3/4 hours or until beef is fork-tender.3 Remove beef; keep warm. Add frozen vegetables to skillet; bring to a boil. Reduce heat to medium; cook, covered, 5 to 7 minutes or until just tender, stirring once. Stir in peanuts.4 Serve steaks with vegetable mixture over rice, if desired. Sprinkle with green onions, if desired.