Mushroom & Swiss Burger Foil Packets are a juicy, cheesy, and flavorful way to enjoy burgers with minimal cleanup. Ground beef is seasoned and cooked with mushrooms, onions, and melted Swiss cheese, all wrapped in foil for a tender, oven- or grill-baked meal. Perfect for camping, BBQs, or easy weeknight dinners.
Prep Time
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Servings: 4
Equipment
- Aluminum foil sheets
- Mixing bowl
- Baking sheet or grill
- Knife and cutting board
- Spoon or spatula
Ingredients
- 1 lb ground beef
- 1 cup mushrooms, sliced
- 1 small onion, sliced
- 4 slices Swiss cheese
- 1 tbsp Worcestershire sauce
- 1 tsp garlic powder
- 1 tsp onion powder
- Salt and black pepper to taste
- 1 tbsp olive oil
- Optional: chopped parsley for garnish
Ingredient Notes
- Ground Beef: 80/20 blend gives the juiciest burgers.
- Swiss Cheese: Melts smoothly and adds a mild nutty flavor.
- Mushrooms: Add earthy flavor and moisture.
- Worcestershire Sauce: Boosts savory umami taste.
Instructions
Step 1: Prepare the Beef
- Preheat oven to 400°F (200°C) or heat grill to medium-high.
- In a bowl, mix ground beef with Worcestershire sauce, garlic powder, onion powder, salt, and pepper.
- Divide into 4 equal portions and shape into patties.
Step 2: Assemble Foil Packets
- Lay out 4 large sheets of aluminum foil.
- Place one burger patty in the center of each.
- Top with mushrooms and onion slices.
- Drizzle lightly with olive oil.
Step 3: Seal and Cook
- Fold foil tightly into sealed packets.
- Place on baking sheet or grill.
- Cook for 20–25 minutes, until beef is fully cooked.
Step 4: Add Cheese
- Carefully open foil packets (watch for steam).
- Place Swiss cheese on top of each patty.
- Close foil loosely and let sit 2–3 minutes until melted.
Step 5: Serve
- Garnish with parsley if desired.
- Serve hot as-is or on burger buns.
Nutrition Facts (Per Serving Approx.)
- Calories: 480
- Protein: 32g
- Carbohydrates: 6g
- Fat: 36g
- Fiber: 1g
- Sodium: 520mg
Tips
- Double-layer foil prevents leaking.
- Don’t overstuff packets for even cooking.
- Add a slice of bacon for extra flavor.
- Serve with fries or a fresh salad for a complete meal.
Variations
- Cheddar Version: Swap Swiss cheese for cheddar.
- Garlic Butter Style: Add garlic butter before sealing.
- Low-Carb Option: Serve without buns.
- Spicy Mushroom Burger: Add jalapeños or hot sauce.