Juicy Mushroom and Swiss Sliders

If you’re a burger lover, this Mushroom and Swiss Slider recipe will give you a new way to enjoy this American favorite. There is just something special about the combination of caramelized onions, Swiss cheese, and mushrooms that change the conversation. And let’s not forget about the spicy “secret sauce.”

Sliders are a great way to enjoy an excellent burger without the pressure of eating a whole one. 

one mushroom and swiss slider with secret sauce

The caramelized onions and the “secret sauce” take these sliders over the top like Walter Payton diving into the end zone for the game-winning score.

And given that I’m always up to creating a new recipe, I figured why not my version of the secret sauce that some well-known burger giant is famous for? 

A quick tidbit…did you know the slider concept was made popular by the White Castle restaurant franchise? The funny thing is I’ve never had one. Lol.

Ingredients you’ll need for your sliders:

mushroom and swiss slider ingredients
  • To make the caramelized onions, you’ll need two ingredients, chopped yellow onions, and butter. Caramelizing onions takes a while (typically around 30 minutes and sometimes longer), but it is worth it.
  • The mushrooms will also saute in butter, but only for 5 minutes until they are nice and golden brown.
  • For the patties, you’ll need ground beef, Worcestershire sauce, cream of mushroom, and a slew of seasonings (ground cumin, chili powder, paprika, garlic powder, black pepper, and sea salt).
  • You can’t make mushroom and swiss sliders without Swiss cheese, and for the buns, we use regular slider buns, but I’ve found Hawaiian rolls to work great too.
  • The spicy secret sauce is a quick combination of mayo, ketchup, paprika, sriracha, red pepper, black pepper, sea salt, and garlic powder.
trio mushroom and swiss sliders

How to make mushroom swiss burger sliders:

  • Begin this process by chopping your onions into small pieces and sauteing them in butter until they become translucent. This process will take around 25-30 minutes.
  • Cook your fresh mushrooms until they are tender, and set them to the side.
  • The seasoning is essential for any burger, so once you add your ground beef to a bowl, add your seasonings evenly and mix well with your hands before placing them in the skillet. This recipe will make 8 patties.
  • The sauce is the secret ingredient that brings everything together. Place all the secret sauce ingredients into a bowl and whisk (paid link) together until smooth.
  • If you prefer, quickly toast your slider buns with butter for added texture and flavor.
  • Build your sliders and serve them up! 
three hamburger sliders with secret sauce

This burger recipe is great for large gatherings when inviting guests over for the big game or quiet nights at home. When you want a burger night that is a true win-win across the board, give these mushroom swiss Sliders a spot on your dinner table. Enjoy!

Check out a few of my other slider recipes:

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trio of mushroom and swiss sliders

Juicy Mushroom and Swiss Sliders

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  • Author: Eric Jones
  • Total Time: 28 minutes
  • Yield: 4 1x


Juicy palm-sized beef patties, caramelized onions, mushrooms, and swiss cheese will make these Mushroom & Swiss Sliders your new fave.


Units Scale
  • 1/2 yellow onion, chopped
  • 2 tbsp butter, divided
  • 4 oz mushrooms, sliced
  • 1 1/2 lb ground beef
  • 1 tsp ground cumin
  • 1 tsp paprika
  • 1/2 tsp garlic powder
  • 1 tsp chili powder
  • 1 tsp Worcestershire sauce
  • 3 tsp cream of mushroom
  • 1/2 tsp black pepper
  • 1/4 tsp sea salt
  • 8 slices of swiss cheese
  • 4 slider buns

For the Secret Sauce:

  • 1/4 cup mayo
  • 3 tsp ketchup
  • 1/4 tsp paprika
  • 1/4 tsp sriracha
  • dash sea salt
  • dash black pepper
  • dash red pepper
  • dash garlic powder


  1. Cut your onion in half and chop it into small pieces. Add 1 tbsp of butter to a medium-low heated pan. Add chopped onions and cook for 25-30 minutes until they are soft, translucent, and golden brown. Set to the side when done.
  2. Add 1 tbsp of butter into a separate cooking pan on medium heat and cook fresh mushrooms for 5 minutes until soft and golden brown. Set to the side when done.
  3. In a medium bowl, break your ground beef into small pieces. Add ground cumin, paprika, garlic powder, Worcestershire sauce, cream of mushroom, sea salt and black pepper. Mix ingredients.
  4. Heat large skillet to medium heat. Form your ground beef into 8 small patties. Add the patties to large skillet cooking for 4 minutes on each side. Once you flip the patties, add the Swiss cheese slices to each patty. Once the cheese melts, remove from the heat.
  5. Add mayo, ketchup, red pepper, sriracha, sea salt, black pepper, red pepper, and garlic powder in a small bowl for the secret sauce. Stir until blended.
  6. To build your slider, layer your bottom bun with a patty, cooked onions, and mushrooms, and top off with secret sauce. Top with the top bun.
  • Prep Time: 10 minutes
  • Cook Time: 18 minutes
  • Category: Lunch
  • Method: Stovetop
  • Cuisine: American


  • Calories: 658
  • Sugar: 17.1g
  • Sodium: 678mg
  • Fat: 35.4g
  • Carbohydrates: 44.7g
  • Fiber: 3.3g
  • Protein: 75.7g
  • Cholesterol: 237mg

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