Beef Tip Kabobs With Teriyaki Ginger Sauce

Ingredients

• 3 pounds beef tip roast or sirloin steak, trimmed
• 2 green bell peppers
• 2 red bell peppers
• 2 zucchini squash
• 2 yellow squash
• 1 onion
• 1 pint cherry tomatoes
• 1 tablespoon olive oil
• 3 large cloves minced garlic
• 2 tablespoons minced onion
• 3/4 cup lite soy sauce
• 3 tablespoons ketchup
• 2 tablespoons molasses
• 2 tablespoons brown sugar, packed
• 2 drops Worcestershire sauce
• 3/4 teaspoon grated ginger root