Ultimate Grilled Mushroom & Swiss Burger Foil Packets with Garlic Herb Potatoes – No Mess, All Flavor!

If you’re looking for a satisfying dinner that screams comfort, convenience, and bold flavor, this is it: Mushroom and Swiss Burger Foil Packets with Garlic Herb Potatoes! Juicy beef patties topped with melty Swiss cheese, earthy mushrooms, and tender baby potatoes all wrapped in foil and grilled (or baked!) to perfection.

This all-in-one meal is easy to prep, super customizable, and cleanup is almost non-existent—perfect for busy weeknights, summer BBQs, or camping trips. Stay with us to the end for pro tips, variations, and secrets to perfect foil-packet cooking every time.

Ingredients:

For the Burger Patties:

1 lb ground beef (80/20 blend recommended for juiciness)
1 tsp Worcestershire sauce
1 tsp garlic powder
Salt and black pepper, to taste
4 slices Swiss cheese

For the Foil Packs:

1½ cups sliced mushrooms (white button or cremini)
½ small red onion, thinly sliced
1 tbsp olive oil
1 lb baby potatoes, halved
1 tsp Italian seasoning
1 tbsp butter (optional but highly recommended)

Additional:

Non-stick spray or foil-safe oil
4 large sheets of aluminum foil

Step-by-Step Instructions:

1. Preheat Your Grill or Oven

Set your grill to medium-high heat or preheat your oven to 400°F (200°C). This ensures even cooking and that the potatoes come out fork-tender.

2. Make the Burger Patties

In a medium bowl, combine ground beef with Worcestershire sauce, garlic powder, salt, and pepper. Mix gently—overmixing can make the patties tough. Form into 4 evenly sized burger patties and set aside.

3. Season the Potatoes

In a separate bowl, toss the halved baby potatoes with olive oil, Italian seasoning, salt, and pepper. You can also add a pinch of paprika or chili flakes for extra flavor.

4. Build the Foil Packets

Spray each foil sheet with non-stick cooking spray. Divide the seasoned potatoes evenly among the four sheets. Place one burger patty on top of the potatoes in each foil pack. Layer with sliced mushrooms and red onion.

5. Seal the Foil Packs

Fold the foil tightly around the ingredients, sealing the edges well to create a packet. Leave a little space inside for heat circulation and steam.

6. Grill or Bake

Place the foil packs on the grill or in the oven and cook for 25–30 minutes, or until the potatoes are tender and the internal temperature of the burgers reaches 160°F (71°C).

7. Melt the Cheese

Carefully open each foil pack (watch out for steam!). Add a slice of Swiss cheese on top of each burger. Loosely reclose the foil and let sit for 2–3 minutes to melt the cheese.

8. Add the Final Touch (Optional)

Drop a small pat of butter over the hot potatoes before serving for a rich, buttery finish. Garnish with chopped parsley or chives if desired.

Time Breakdown:

Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 4
Calories per serving: ~550 kcal

Why You’ll Love This Recipe:

One-pan (or foil!) dinner = almost no cleanup.
Full of flavor from herbs, beef juices, and melted Swiss cheese.
Easy to customize for picky eaters.
Works great for the oven, grill, or even a campfire.
Impressive enough for guests, simple enough for weeknights.

Pro Tips & Variations:

Low-Carb? Replace potatoes with zucchini or cauliflower chunks.
No Swiss? Use provolone, cheddar, or pepper jack.
Make it spicy: Add jalapeños or a drizzle of hot sauce.
Meal prep idea: Make foil packs ahead of time and refrigerate for up to 1 day before grilling.

Perfect for Outdoor Cooking:

These foil packets are fantastic for camping. Prepare everything at home, wrap them up, and throw them over the fire or grill. You’ll have a restaurant-quality meal under the stars!

Don’t Forget!

Bookmark this recipe for your next BBQ or weeknight dinner.
Share it with friends who love easy and delicious meals.
Scroll down and leave a comment: Did you try it? Any variations you loved?