Weeknight mushroom Swiss burgers w/ Aioli

How many of the tasty burgers from our “burger selection” have you tried? Well, here’s a recipe we’re sure you’ll have more than once this Summer.


  • 5 tablespoons butter, divided
  • 1 small onion, thinly sliced
  • 2 teaspoons salt, divided
  • 2 cups mushrooms, sliced
  • 1 teaspoon Worcestershire sauce
  • 1/2 teaspoon dried thyme
  • 4 brioche burger buns
  • 4 (3-ounce) ground beef burger patties
  • 1 teaspoon ground black pepper
  • 1 cup Swiss cheese, shredded

For the Aioli

Start by preparing the mushroom and onions. Heat a sauté pan on medium-high heat. Add 3 tablespoons of the butter, sliced onion, and 1 teaspoon of the salt. Sauté for 5 minutes, stirring frequently, until the onion becomes softened and slightly browned.
Push the onion to one side of the pan and add the mushrooms. Sauté until the mushrooms are browned and the onion is even softer, about 3 minutes.
Add the Worcestershire sauce and dried thyme and toss to combine. Cook for another minute and then remove from the heat and set aside.
Heat a cast-iron pan on medium-high heat. Add the remaining 2 tablespoons of butter. Once melted, add the buns to the pan cut-side down and toast them until they are golden brown.
Salt and pepper both sides of the burgers with the remaining 1 teaspoon salt and all of the pepper. Grill the burgers for about 5 minutes per side until browned on both sides for medium doneness.
Meanwhile, whisk together the mayo, salt, pepper, and lemon juice. Grate the garlic into the mixture and whisk to combine.
Sprinkle the tops of the burgers with some of the shredded cheese. Then divide the mushroom mixture among the 4 burgers and then top with the remaining shredded cheese. Allow the cheese to melt.
Slather the bun with the aioli. Top the bun with the mushroom and cheese-coated burger and enjoy!

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