Easy Beef Kabobs

Bahan-bahan (4 porsi)

• 1 ½ pounds sirloin steak
• 2 bell peppers
• 1 large red onion
• ½ cup olive oil
• ¼ cup Worcestershire sauce
• 2 tablespoons soy sauce (low sodium)
• 2 tablespoons apple cider vinegar
• 1 tablespoon garlic powder
• 1 tablespoon honey
• 1 teaspoon onion powder
• ½ teaspoon chipotle chili powder (optional, for a bit of kick)