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Philly Cheese Steak Foil Packet Dinners

Philly cheesesteak foil packet dinners—an all-in-one grilled meal with thin-sliced sirloin, peppers, onions, and mushrooms sealed in foil until steaming. Provolone melts over the steak and vegetables for that classic Philly-style experience with easy cleanup.
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Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Main Dish
Cuisine: American
Calories: 780
Ingredients Equipment Method Notes

Ingredients
  

Sirloin steak mixture
  • 1.5 lb sirloin steak
  • 2 bell peppers
  • 1 onion
  • 2 cup mushrooms
  • 8 provolone cheese Use slices.
  • 2 tbsp Worcestershire sauce
  • 2 tbsp olive oil
  • 1 tsp garlic powder
  • salt and pepper To taste; season throughout.
  • 4 heavy-duty foil sheets Use large sheets.
  • hoagie rolls Optional for serving.

Equipment

  • 1 sheet pan

Method
 

Assemble the foil packets
  1. Divide the sirloin steak, bell peppers, onion, and mushrooms among 4 large sheets of heavy-duty foil.
  2. Drizzle each packet with olive oil and Worcestershire sauce.
  3. Season each packet with garlic powder, salt, and pepper.
  4. Top each packet with 2 slices of provolone cheese.
  5. Fold the foil into sealed packets, pressing edges tightly to keep steam in.
Grill and serve
  1. Grill the foil packets over medium heat for 18-20 minutes, flipping halfway.
  2. Carefully open the packets and serve hot in hoagie rolls or as-is.

Notes

For the cleanest melt, keep the provolone on top so it steams down over the steak and vegetables. Store leftovers in an airtight container in the refrigerator up to 3 days; reheat in the microwave until hot. Freezing isn’t recommended because the peppers and mushrooms soften too much. For a lighter option, use reduced-fat provolone and trim visible fat from the steak.