PREPARATION:
- Cut beef in half lengthwise, then crosswise into 1/4-inch-thick slices. Combine soy sauce, cornstarch, brown sugar, sesame oil and red pepper flakes in medium bowl; stir until smooth. Add beef and toss to coat; set aside.
- Heat wok over high heat about 1 minute or until hot. Drizzle 1 tablespoon vegetable oil into wok and heat 30 seconds. Add bell pepper strips; stir-fry until crisp-tender. Remove to large bowl. Add 1 tablespoon vegetable oil and heat 30 seconds. Add half of beef mixture to wok; stir-fry until well browned. Remove beef to bowl with bell peppers. Repeat with remaining 1 tablespoon vegetable oil and beef mixture. Reduce heat to medium.
- Add onion; stir-fry about 3 minutes or until softened. Add garlic; stir-fry 30 seconds. Return bell peppers, beef and any accumulated juices to wok; cook until heated through. Spoon rice into serving dish; top with beef and vegetable mixture.
