Keto Bacon Mushroom Swiss Burger

by Clean Keto Lifestyle

This recipe has all the requirements for a PERFECT Keto Burger – caramelized onions, crispy bacon, sautéed mushrooms, and Swiss cheese! This may just be the best burger you have ever had!  It is also keto, low-carb, grain-free, and gluten-free.

keto burger with bacon and swiss

This is One Gourmet Keto Burger

And we aren't mad about it one bit!

This Keto Burger is filled with caramelized onions that offers sweetness, the bacon offers saltiness, the sauteed mushrooms offer deep flavor, and the swiss cheese is the melty goodness that brings it all together.

This juicy burger patty is also layered between two pillowy, soft, herbed buns. We like to call them Cloud Buns!

Get ready for the best burger of your life!

burger with spicy mustard

The Clean Keto Burger Method

For this recipe (as well as all of our entrees that contain meat products), we choose to use ButcherBox, a monthly subscription service that delivers premium beef, chicken, and pork products right to your home!

It’s convenient, easy, and just… better.

We’re very particular about our protein and make a conscious effort to consume only top quality, humanely sourced beef products. All of ButcherBox’s products are organic, antibiotic-free and hormone-free, meaning the products are healthier for you than other meats.

Wanna see what we get in our ButcherBox – check out the video below.

When you choose ButcherBox, you aren’t supporting factory farming or inhumane practices. The animals are grass-fed and ethically-raised, and they’re done so in sustainable, eco-conscious environments.

As the cherry on top, ButcherBox has an incredible price point, with meals averaging out to less than $6 each. For your beef, chicken, and pork products, it’s definitely the way to go if you value uncured, sugar-, nitrate-, and hormone-free products.

Check out Butcher Box today and get $20 off on your first order, plus free bacon and ground beef! And you can make these burgers with your FREE GROUND BEEF and BACON!

keto mushroom bacon swiss burger

What Equipment You Need

For this recipe, you need the obvious – ground beef, bacon, onions, mushrooms, and swiss cheese.

You also need a few kitchen items:

That's it! Let's get cooking!

burger with bacon mushroom swiss

Step #1. Make the Cloud Buns

Heat your oven to 300°F and start on the cloud bun batter.

Separate the eggs and then mix yolks, cream cheese, Parmesan cheese, and rosemary together in mixing bowl.

Whip the separated egg whites and cream of tartar in separate bowl until you get medium stiff peaks.

Gently fold the yolk mixture into the white mixture. The batter should look like the picture below.

keto bun batter

Next, line a baking sheet with parchment paper.

Scoop out the dough and use your hands to shape the dough into bun halves, then place on the lined baking sheet.

You should have enough dough for 10 bun-sized circles on the sheet.

Bake for about 30 minutes or until a light golden brown. Remove from the oven and set aside.

low-carb buns

Step #2. Make The Caramelized Onions

Thinly slice the onion root to tip.

Cut them in half through the root end and  remove the peels from the onions.

Place the onions cut side down on the cutting board and cut them into 1/4-inch width slices.

sliced onions on a cutting board

Heat a skillet over medium-low heat.

Add in the oil and onions. Cook until light brown and soft, stirring along the way.

Add a pinch of salt to the onions when they have cooked for about 15 minutes. It usually takes about 25 minutes for them to caramelize.

caramelized onions in a skillet

Step #3. Make Your Sauteed Mushrooms

Wipe your mushrooms clean with a damp cloth to remove any dirt.

Cut your button mushrooms in slices (or you can buy them pre-sliced).

sliced mushrooms

Heat another skillet over medium heat.

Add the mushrooms, butter, and stock to the skillet and cook for about 20-25 minutes.

sauteed mushrooms

Step #4. Gather the Rest of Your Toppings

Get the rest of your ingredients ready.

Cook your bacon (we like to do this in the oven at 425°F for 15 minutes or so) and grab your Swiss Cheese slices.

slices of swiss cheese and bacon

Step #5. Grill Your Burger

Grill your burger patties on an outdoor grill or use a grill pan.

Add on the Swiss Cheese slice after the first flip.

Once ready, assemble your burgers by a starting with a bun half, then adding the cooked burger patty, then the bacon, then the mushrooms, then the caramelized onions, and finally another bun half!

Add some spicy mustard for some kick! Enjoy!!!!

keto mushroom bacon swiss burger

Featured Recipe Video

Check out this video to see how to make our most popular recipe – Keto Zucchini Bread Whoopie Pies.

They are easy to make and so delicious!

More Keto Dinner Recipes

Looking for more keto dinner recipes? Check out these favorites:

close up of keto burger


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We Can't Wait To See You Try It!

We love seeing our recipes come to life!! We can’t wait to see how you make these and loving seeing each person's unique spin on it! Tag us on Instagram @cleanketolifestyle or use the hashtag #CKLrecipe!

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