With a sharp knife cut steak into paper thin slices. Sprinkle with salt and pepper; put into a bowl. ... heat until the beef is cooked, about 10 minutes. ... and mushrooms if desired.
Trim fat from meat; cut ... large skillet. Add beef; cook, turning frequently, until ... minutes for round steak, 5 to 8 minutes for sirloin. Add green pepper strips during last 5 minutes ... minutes. Serve with rice.