I created these Mushroom And Swiss Burger Foil Packets to turn classic burger flavors—juicy beef, earthy mushrooms, and melty Swiss—into a hands-off, easy foil packet meal. They’re perfect for grilling, baking, or camping.

Why You’ll Love This Recipe

I love how each packet locks in burger flavor while keeping prep tidy and cleanup minimal. The Swiss cheese melts perfectly over savory mushrooms and beef, all steamed in its own juices. It’s dinner I can set and forget until it’s ready—effortless and delicious.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

Ground beef or turkey (patties or loosely formed)
Swiss cheese slices or shredded Swiss
Mushrooms (sliced, varieties like cremini, button, or shiitake)
Onion (sliced or diced)
Olive oil or butter
Salt and freshly ground black pepper
Garlic powder or minced garlic (optional)
Caramelized onion or Worcestershire sauce (optional)
Fresh parsley or thyme for garnish (optional)

Directions

I preheat the grill or oven to medium/high (around 400 °F / 200 °C).
I prepare 4–6 squares of heavy-duty foil, brushing one side with oil or butter.
I form beef (or turkey) into patties and season them generously with salt, pepper, and garlic powder.
On each foil piece, I place a patty, then top with seasoned mushroom slices and onions—tossed lightly in oil or butter.
I fold the foil over to create a airtight packet, sealing edges completely to trap steam.
I place packets on the grill or in the oven and cook for about 15–20 minutes, or until the meat reaches desired doneness and mushrooms are tender.
I open each packet carefully—watching for steam—and top each patty with Swiss cheese. I reseal for a minute or two to let the cheese melt.
I garnish with parsley or thyme if I want a fresh herbal note and serve straight from the packet or plate.

Servings And Timing

This recipe serves 4 to 6 people, one packet per person.

Prep time: 10–15 minutes
Cook time: about 20 minutes
Total time: around 30–35 minutes

Variations

I use blue cheese or cheddar instead of Swiss for different flavor profiles.
I add sliced bell peppers, zucchini, or spinach to the packet with mushrooms.
I stir in caramelized onions or drizzle Worcestershire sauce over the meat before sealing for added depth.
I serve the packet contents over buns, rice, or alongside roasted potatoes for a full meal.

Storage/Reheating

I store leftover packet contents in an airtight container in the fridge for up to 2 days. To reheat, I unwrap and warm in a skillet or oven until heated through and cheese is nice and gooey again.

Mushroom And Swiss Burger Foil Packets

FAQs

Can I Make These Ahead Of Time?

Yes—I assemble the foil packets, seal them, and refrigerate for up to 24 hours. When I’m ready, I cook them straight from the fridge, adding a few more minutes to the cook time.

Are These Safe For Camping Or Fire Cooking?

Absolutely. I place packets on a grill grate or directly on coals. I turn them halfway through to ensure even cooking.

Can I Use Single Sheet Of Foil Without Folding?

I don’t recommend it—a tightly sealed packet traps steam and ensures juicy meat and tender mushrooms. Without sealing, moisture escapes and packets could leak.

How Do I Know When The Meat Is Done?

I use a meat thermometer—I cook ground beef to 160 °F (71 °C) and turkey to 165 °F (74 °C). Juices should run clear if I pull it slightly.

Can I Freeze Assembled Packets?

Yes—I freeze sealed, uncooked packets in freezer bags for up to 1 month. I thaw overnight in the fridge before cooking.

Conclusion

I love making Mushroom And Swiss Burger Foil Packets when I want burger dinner without the mess. They’re flavorful, customizable, and come together quickly—ideal for grilling season, camping, or busy weeknights. The combination of juicy beef, savory mushrooms, and melted Swiss in one neat packet makes every bite satisfying.

Mushroom And Swiss Burger Foil Packets

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Author: Sophia
Total Time: 30–35 minutes
Yield: 4–6 servings (one packet per person)
Diet: Gluten Free

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Description

These Mushroom and Swiss Burger Foil Packets turn classic burger flavors—juicy beef (or turkey), earthy mushrooms, and melted Swiss cheese—into a fuss‑free, hands‑off dinner cooked right in individual foil packets.

Ingredients

1.5 lbs ground beef or turkey (divided into 4–6 portions)

4–6 slices Swiss cheese or 1–1¼ cups shredded Swiss

8 oz mushrooms, sliced (cremini, button, or shiitake)

1 small onion, sliced or diced

1–2 tbsp olive oil or butter

Salt and freshly ground black pepper, to taste

Optional: garlic powder or minced garlic (1 tsp)

Optional: 1 tbsp Worcestershire sauce or caramelized onion mixture

Optional garnish: fresh parsley or thyme

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Instructions

Preheat grill or oven to 400 °F (200 °C).
Prepare 4–6 heavy‑duty foil squares, brushing one side with oil or butter.
Shape meat into patties (one per person), seasoning with salt, pepper, and garlic if using.
On each foil square (oiled side up), place a patty. Top with mushrooms and onions tossed in oil/butter.
Add Worcestershire or caramelized onion mix if desired.
Seal foil packets completely to trap steam.
Cook on grill or in oven for 15–20 minutes, until meat reaches safe temperature (160 °F/71 °C for beef; 165 °F/74 °C for turkey) and veggies are tender.
Carefully open packets, top each with Swiss cheese, then reseal for 1–2 minutes to melt cheese.
Garnish with parsley or thyme if desired, and serve directly from packets or plate.