1In a large resealable plastic bag, combine soy sauce, sesame oil, sesame seeds, garlic, sugar, salt, black pepper, and MSG. Place beef, carrots, and onions in the bag; seal, and shake to coat the vegetables and beef with the sauce. Refrigerate for at least 2 1/2 hours. I prefer to marinate mine overnight.
2Preheat an outdoor grill for high heat. Remove meat and vegetables from marinade, and place on a large sheet of aluminum foil; seal. Discard marinade.
3Place on grill, and cook for 15 to 20 minutes, or to desired doneness.
Footnotes
Tip
Aluminum foil can be used to keep food moist, cook it evenly, and make clean-up easier.