Prepare the Ingredients – Slice the potatoes and carrots thinly. Chop the onion and mushrooms (if using).
Make the Patties – In a bowl, mix ground beef, Worcestershire sauce, garlic powder, salt, and pepper. Form into 4 equal patties.
Assemble the Packets – Lay out four large sheets of aluminum foil. Drizzle each with olive oil. Divide the potatoes and carrots evenly.
Add the Patties – Place one patty on top of each vegetable pile. Add onions and mushrooms. Season again with salt and pepper.
Seal the Packets – Fold each foil sheet over the ingredients, sealing tightly to lock in moisture.
Cook the Packets:
Campfire: Place packets on hot coals for 25-30 minutes.
Grill: Preheat to medium heat and cook for 25 minutes.
Oven: Bake at 400°F for 30-35 minutes on a baking sheet.
Serve & Enjoy – Carefully open packets, allowing steam to escape. Serve hot with your favorite dipping sauces.