PREPARATION:
- Trim fat from beef; discard. Slice beef across grain into thin slices. Heat 1 teaspoon oil in large skillet over medium-high heat until hot. Cook and stir half of beef 2 minutes or until beef is barely pink in center. Remove beef to bowl. Repeat with remaining beef. Remove beef to large bowl; set aside. Reduce heat to medium.
- Heat remaining 1 teaspoon oil in skillet until hot. Add onion and pepper; cook and stir 3 to 5 minutes until vegetables are crisp tender. Return beef and any accumulated juices to skillet. Add cheese, milk and Worcestershire sauce; cook until cheese is melted. Serve over rice.
