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Mushroom Swiss Smash Burger Recipe

This Mushroom Swiss Smash Burger Recipe delivers juicy, flavor-packed patties topped with caramelized mushrooms and melted Swiss cheese. Perfect for a quick yet gourmet dinner, this recipe combines smash burger techniques with rich, savory toppings for a restaurant-quality meal at home.
Prep Time15 minutes
Cook Time25 minutes
Total Time40 minutes
Course: Dinner
Cuisine: American
Servings: 4 servings
Calories: 580kcal

Ingredients

  • 1 lb ground chuck (80% lean, 20% fat)
  • 1 tbsp olive oil
  • 1 tbsp unsalted butter
  • 8 oz cremini mushrooms, thinly sliced
  • 2 cloves garlic, minced
  • 1 tsp fresh thyme leaves
  • 1 tsp Worcestershire sauce
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 4 slices Swiss cheese
  • 4 burger buns, toasted
  • 1/4 cup mayonnaise
  • 1 tbsp Dijon mustard
  • 1 cup baby arugula
  • 1/2 small red onion, thinly sliced

Instructions

  • Prep the Mushrooms: Heat 1 tbsp olive oil and 1 tbsp butter in a skillet over medium-high heat. Add sliced mushrooms and cook, stirring occasionally, until deeply browned and caramelized, about 8-10 minutes. Add minced garlic, thyme, Worcestershire sauce, salt, and pepper. Cook for another 1-2 minutes until fragrant. Remove from heat and set aside.
  • Form the Patties: Divide the ground chuck into 4 equal portions (about 4 oz each). Roll each portion into a loose ball, then flatten slightly into a thick disc. Season both sides generously with salt and pepper.
  • Smash the Patties: Heat a cast-iron skillet or griddle over high heat until very hot. Place a beef ball in the skillet and immediately press down firmly with a spatula to flatten into a thin patty. Cook for 2-3 minutes until a deep crust forms. Flip the patty and immediately place a slice of Swiss cheese on top. Cook for another 1-2 minutes until cheese is melted. Repeat with remaining patties.
  • Assemble the Burgers: Spread mayonnaise and Dijon mustard on the toasted buns. Place a patty on the bottom bun, top with caramelized mushrooms, arugula, and red onion slices. Add the top bun and serve immediately.

Notes

Pro Tips: Use a cast-iron skillet for the best sear on your patties. Smash the beef thinly and quickly to create a crispy crust. Sauté mushrooms until deeply browned for maximum flavor. Toast the buns lightly to add texture and prevent sogginess. Storage: Store leftover patties and toppings separately in airtight containers for up to 3 days. Reheat in a skillet or microwave before assembling. Variations: Swap Swiss cheese for Gruyère or provolone. Add a spread of garlic aioli or spicy mustard for extra flavor. Use portobello mushrooms for a vegetarian twist.