Mushroom Swiss Burgers Recipe

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This easy Mushroom Swiss Burger has all the flavor and none of the fuss! It's so easy to create this bistro-style meal at home.

Step-by-step photos can be seen below the recipe card.

Prep Time5

Cook Time35

Total Time40

Course: Dinner, Sandwiches

Cuisine: American

Servings: (¼-lb) burgers

In a large bowl, gently stir the ground beef, salt, pepper, and rosemary together. Divide into 6 even patties and set aside.
1½ lbs. 85% lean ground beef, 1 tsp kosher salt, ½ tsp ground black pepper, 1 tsp minced fresh rosemary
In a cast iron skillet, melt the 3 tbsp of butter for the mushrooms over medium-high heat. Add in the onion and cook until softened and golden, about 10-12 minutes. Add in the mushrooms and cook until caramelized, about 10 minutes.
3 tbsp unsalted butter, 1 yellow onion, 8 oz. sliced mushrooms
Stir in the balsamic vinegar plus 2 tbsp of water, scraping up the browned bits from the bottom of the pan. Season with salt and pepper to taste and set aside.
1 tbsp balsamic vinegar, salt and pepper
Wipe out the skillet and return it to medium-high heat. Spread each bun top and bottom with ½ tbsp butter each. Place butter side down into the skillet and cook until golden and toasted, about 3-5 minutes. Remove from the pan and set and set aside.
6 brioche hamburger buns, 6 tbsp unsalted butter
Place the patties into the skillet. Cook until the bottom side has formed a nice dark brown crust, flip and cover each patty with cheese. Cover and cook for 5-6 minutes until the cheese is melted.
6 slices Swiss cheese
To assemble the burgers, brush the bottom bun with mayonnaise, if desired. Place the patty on top, then mushrooms, arugula and the top bun. Enjoy!
mayonnaise, a few handfuls of arugula

Make the patties any size that you desire. 1 pound of ground beef makes 4 (¼-pound) patties, 3 (⅓-pound) patties, or 2 (½-pound) patties.
Take care not to overcook your burgers. Follow my meat temperature guide. Cook burgers until they reach somewhere between 135°F (medium-rare) to 165°F (well-done).
To make on the grill, preheat to medium-high and cook for 3-5 minutes per side, until they reach your desired level of doneness.
Nutritional information does not include optional ingredients.