Vegetable Beef Stir-Fry

Directions

1. In a large bowl, combine the first five ingredients; add beef and toss to coat. Refrigerate for 15 minutes. For sauce, in a small bowl, combine the cornstarch, broth, ketchup, soy sauce and sesame oil until smooth; set aside.
2. In a large nonstick skillet or wok coated with cooking spray, stir-fry the beef mixture in 1 teaspoon canola oil until no longer pink. Remove and keep warm. Stir-fry the onion in remaining canola oil for 2 minutes. Add green pepper; stir-fry for 2 minutes. Add tomatoes; stir-fry 1 minute longer.
3. Return beef to the pan. Stir sauce; add to beef and vegetables. Bring to a boil; cook and stir for 2 minutes or until thickened.