| 1. | With sharp knife, cut sirloin into twenty 1-inch cubes; place in medium bowl. In small cup, stir together soy sauce, gingerroot, Worcestershire sauce, oregano, cumin and oil. Stir soy mixture into beef. Cover bowl with plastic wrap; refrigerate at least 2 hours but not more than 24 hours, turning beef occasionally. |
| 2. | Heat broiler. Spray broiler-pan rack with cooking spray. Alternately thread 5 beef cubes, 4 onion pieces, 4 bell pepper squares, and 3 cherry tomatoes onto each of four 18-inch wooden or metal skewers. Place skewers on broiler pan; sprinkle with salt. Broil 4 inches from the heat 8 to 10 minutes, turning every 2 minutes, until vegetables are tender and beef is cooked through. |
