Follow these simple steps to create your Grilled Philly Cheese Steak Kabobs:

1. Marinate the Steak: In a bowl, combine olive oil, soy sauce, Worcestershire sauce, garlic powder, onion powder, salt, and pepper. Add the steak cubes and toss to coat. Let marinate for at least 15 minutes.
2. Prepare the Vegetables: While the steak marinates, cut the bell pepper, onion, and mushrooms into chunks.
3. Skewer the Ingredients: Thread the marinated steak, bell pepper, onion, and mushrooms onto the skewers, alternating between the ingredients for a colorful presentation.
4. Preheat the Grill: Heat your grill to medium-high heat.
5. Grill the Kabobs: Place the skewers on the grill, cooking for about 10-15 minutes. Turn occasionally until the steak is cooked to your desired doneness and the vegetables are tender.
6. Add Cheese: In the final minutes of grilling, sprinkle the shredded cheese over the kabobs. Close the grill lid to allow the cheese to melt.
7. Remove from Grill: Once the cheese is melted and the kabobs are cooked, carefully remove them from the grill.
8. Let Rest: Allow the kabobs to rest for a few minutes before serving to let the juices settle.