Vegetable Beef Stir-Fry

Ingredients (16)

• 1 teaspoon cornstarch
• 2 tablespoons reduced-sodium soy sauce
• 1 teaspoon minced fresh gingerroot
• 1/2 teaspoon sugar
• 1/4 teaspoon pepper
• 1 beef top sirloin steak (1 pound), cut into thin strips
• SAUCE:
• 1 teaspoon cornstarch
• 1/2 cup reduced-sodium chicken broth
• 2 tablespoons ketchup
• 1 tablespoon reduced-sodium soy sauce
• 2 teaspoons sesame oil
• 2 teaspoons canola oil, divided
• 1 medium sweet onion, cut into chunks
• 1 medium green pepper, cut into chunks
• 3 plum tomatoes, cut into chunks