Portabella Mushroom & Swiss Beef Burger

Mushroom & Swiss Beef Burgers

Consider adding this mushroom & Swiss beef burger recipe to your upcoming barbecue menu. I promise that these are sure to be a crowd-pleaser!

Portabella Mushroom & Swiss Beef Burger

I love burgers.

I don’t really have much to say about this recipe except well, I really love a good mushroom burger. My husband and I have eaten at enough burger joints that I’ve become somewhat of a snob when it comes to my burger. I guess it’s because I’ve had too many subpar and disappointing hamburgers (thanks Wendy’s, Mickey D’s and Burger King).

If there is one burger that never disappoints, it’s a good old fashioned mushroom Swiss. I love how the nuttiness of the Swiss cheese balances out the caramelized meatiness of the mushrooms AND onions. You really can’t go wrong.

How does this portabella recipe taste?

I wanted to try something different and find a reasonably healthier way to bulk up my hamburger patties. Rather than using more beef, I decided to incorporate plenty of portabella into the actual patty mixture. The verdict? These patties do NOT disappoint. In fact, I felt that the mushroom within the patty mixture actually helped to create a juicier and more mouthwatering burger. This is definitely one that will be on our menu rotation! If you’re looking for something tasty to accompany these patties, consider making my cauliflower tater tots.

Image of a zoomed in mushroom swiss burger with smiling spork faces in the background
A delicious mushroom swiss beef burger for your pleasure

If you’re a fellow Weight Watchers member (and are on the Green plan), one patty with melted cheese and grilled onion will be worth 9 WW smart points.

Alright, I’ve spoken enough. Let’s move onto the recipe, shall we?!?

Mushroom & Swiss Beef Burger

Consider adding this mushroom & Swiss beef burger recipeto your upcoming barbecue menu. I promise that these are sure to be acrowd-pleaser!
Prep Time10 mins
Cook Time10 mins
Course: Main Course
Cuisine: American
Keyword: Burger, mushroom swiss burger, portabella
Servings: 4 burgers
Calories: 421kcal


  • 1 lb ground beef 90% lean
  • 1 egg
  • 8 oz. portabella mushrooms
  • 1 onion small


  • ½ tsp. salt
  • ½ tsp. black pepper
  • 2 tbsp. Worcestershire sauce
  • ¼ tsp. garlic powder
  • 2 tsp. oil

Toppings (optional)

  • 4 burger buns
  • 4 Swiss cheese slices
  • grilled onion
  • spinach
  • sour cream


  • Coarsely dice onion into pieces roughly half aninch in size. Set aside.
  • In a food processor, pulse mushrooms and half of the diced onions until the pieces are roughly the size of rice grains.
  • After pulsing the mushrooms and onions, sauté the mixture in 1 tsp. oil for about 4-7 minutes, or until the mushrooms lightly caramelize and the onion turns translucent. Allow the mushroom mixture to cool down for a few minutes or until semi-cool to the touch. Once cooled, transfer to a large bowl.
  • In large bowl, add ground beef, egg, andseasonings to the mixture, and mix until all of the ingredients are wellcombined. Afterwards, form the mixture into 4-6 patties, and then sauté them oneach side for about 3-5 minutes.
  • Immediately top each patty with a slice of Swiss cheese, and then serve assemble the burger with your favorite toppings. Enjoy!



Recipe is 421 calories with the patty and Swiss cheese. 

421 calories per serving | 40.3g protein | 25g fat | 6.4g carbs | .5g fiber | 9 WW Smart Points (Green Plan)