Keto Bacon Mushroom Swiss Burger with Caramelized Onions on Herbed Cloud Bun
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.
Servings: 5 Servings
Calories: 751kcal
Ingredients
For the Rosemary Parmesan Cloud Buns
- 3 eggs
- 3 tablespoons softened cream cheese
- 1/4 teaspoon cream of tartar
- 1/4 cup Parmesan or pecorino romano
- 1 teaspoon fresh rosemary chopped
For the Caramelized Onions
- 2 yellow onions thinly sliced
- 1 tablespoon avocado oil
- pinch salt
For the Brown Butter Mushrooms
- 2 cups button mushrooms sliced
- 1/4 cup beef bone broth
- 2 tablespoons grass-fed butter
For the Burgers
- 2 lbs. ground beef
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon Steak Seasoning
- 1 teaspoon All Purpose Seasoning
- 1/4 teaspoon black pepper
- 5 slices Swiss cheese
To Assemble
- 5 slices of cooked bacon
- Spicy brown mustard
Instructions
For the Rosemary Parmesan Cloud Buns
- Heat your oven to 300°F and line a baking sheet with parchment paper.
- Separate the eggs yolks from the egg whites.
- Mix the egg yolks, cream cheese, Parmesan cheese, and rosemary together in small bowl.
- In a separate bowl, whip the egg whites and cream of tartar until you get medium-stiff peaks.
- Gently fold the yolk mixture into the egg white mixture.
- Create 10 bun-sized circles on the baking sheet.
- Bake for about 30 minutes or until light golden brown.
- For the Caramelized Onions
- Heat a skillet to medium-low heat.
- Add in the oil and onions slices.
- Cook the onions low and slow, until they turn 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.
For the Brown Butter Mushrooms
- Heat another skillet to medium heat.
- Add all in all the ingredients.
- Cook the mushrooms for about 20-25 minutes, stirring along the way.
For the Burgers
- Heat to grill or grill pan to high heat.
- Mix all the ingredients (except the swiss cheese slices) together in a medium bowl.
- Form the ground beef mixture into 5 patties.
- Grill the patties for on each side. (3 minutes on each side for medium rare, 4 minutes on each side for medium, and 5 minutes on each side for medium well)
- Add the swiss cheese after first flip.
- Once ready, assemble your burgers. Place one patty on the bottom cloud bun, then top with the onions, mushrooms, mustard, bacon, then the top cloud bun.
Nutrition
Calories: 751kcal | Carbohydrates: 9g | Protein: 47g | Fat: 58g | Saturated Fat: 23g | Cholesterol: 263mg | Sodium: 499mg | Potassium: 822mg | Fiber: 2g | Sugar: 3g | Vitamin A: 667IU | Vitamin C: 4mg | Calcium: 279mg | Iron: 5mg