
Instructions:
- Preheat Oven or Grill:
- Oven: 400°F (200°C)
- Grill: medium-high heat
- Prepare the Beef:
- In a bowl, combine ground beef, salt, pepper, garlic powder, and Worcestershire sauce.
- Form into 4 patties (or as many as needed).
- Prepare Mushroom Mixture:
- In a skillet or microwave, sauté mushrooms and onions with butter or oil until soft and fragrant. Season lightly with salt and pepper.
- Assemble Foil Packets:
- Cut 4 large squares of foil.
- Place a burger patty in the center of each square.
- Top each patty with sautéed mushrooms and onions, then a slice of Swiss cheese.
- Fold the foil over to create a sealed packet.
- Cook:
- Oven: Place foil packets on a baking sheet and bake for 15–20 minutes until burgers are cooked through.
- Grill: Place packets on the grill for 15–20 minutes, turning once halfway through.
- Serve:
- Carefully open foil packets (steam will escape!) and serve burgers on their own, in buns, or over a bed of greens.
💡 Tips:
- Add a slice of tomato or some pickles inside the foil for extra flavor.
- For juicier burgers, avoid over-packing the beef; keep it lightly formed.
- Leftover mushroom mixture can be used as a topping for eggs or sandwiches.
If you like, I can also give you a cheesy garlic butter version of these foil packet burgers that’s even more indulgent—perfect for a cozy dinner.
Do you want me to share that version too?
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