This Gluten-Free Mushroom Swiss Burger features a juicy seasoned beef patty topped with melted Swiss cheese, savory sautéed mushrooms, sweet caramelized onions, and served on a tender homemade gluten-free biscuit. Perfect for weeknight dinners, cookouts, or gourmet comfort food.
There is something incredibly satisfying about a gourmet burger piled high with melted Swiss cheese, buttery mushrooms, and sweet caramelized onions. This gluten-free version captures all of those classic steakhouse flavors while replacing the traditional bun with a light, flaky homemade gluten-free biscuit. The biscuit adds a rich, buttery texture that perfectly complements the juicy burger and savory toppings.
This recipe is ideal for anyone following a gluten-free lifestyle without sacrificing flavor or texture. Whether served with crispy fries, roasted potatoes, or a fresh salad, this hearty burger is guaranteed to become a favorite.
Prep Time
30 minutes
Cook Time
30 minutes
Total Time
1 hour
Servings
4 burgers
Gluten-Free Biscuits
2 cups gluten-free all-purpose flour blend with xanthan gum
2 teaspoons baking powder
½ teaspoon baking soda
1 teaspoon kosher salt
1 tablespoon granulated sugar
6 tablespoons cold unsalted butter, cubed
¾ cup buttermilk, cold
1 large egg
Burger Patties
1½ pounds ground beef (80/20)
1 teaspoon Worcestershire sauce (gluten-free)
1 teaspoon garlic powder
1 teaspoon onion powder
1 teaspoon kosher salt
½ teaspoon freshly ground black pepper
1 teaspoon smoked paprika
Mushroom and Onion Topping
2 tablespoons butter
1 tablespoon olive oil
8 ounces cremini or baby bella mushrooms, sliced
1 large sweet onion, thinly sliced
1 teaspoon fresh thyme leaves
½ teaspoon kosher salt
¼ teaspoon black pepper
Assembly
4 slices Swiss cheese
Butter for toasting biscuits (optional)
Step 1: Prepare the Biscuit Dough
Preheat the oven to 425°F. Line a baking sheet with parchment paper.
In a large bowl, whisk together the gluten-free flour, baking powder, baking soda, salt, and sugar. Cut the cold butter into the flour mixture until pea-sized crumbs form.
Whisk together the buttermilk and egg. Pour into the flour mixture and stir just until a soft dough forms.
Turn the dough onto a lightly floured surface and gently pat it into a 1-inch thick rectangle. Fold it over twice to create layers, then pat it back to 1-inch thickness.
Using a biscuit cutter, cut out four large biscuits and place them on the prepared baking sheet.
Bake for 16 to 20 minutes or until lightly golden. Cool slightly before slicing.
Step 2: Caramelize the Onions
Heat the butter and olive oil in a large skillet over medium-low heat.
Add the sliced onions with a pinch of salt. Cook slowly for about 20 minutes, stirring frequently until deeply golden and caramelized.
Step 3: Cook the Mushrooms
Add the sliced mushrooms and thyme to the onions.
Increase the heat slightly and cook for another 8 to 10 minutes until the mushrooms release their moisture and become beautifully browned.
Season with salt and pepper.
Step 4: Prepare the Burger Patties
Combine the ground beef with Worcestershire sauce, garlic powder, onion powder, smoked paprika, salt, and pepper.
Divide into four equal patties, making a slight indentation in the center of each.
Step 5: Cook the Burgers
Heat a cast iron skillet or grill over medium-high heat.
Cook each burger for approximately 4 to 5 minutes per side for medium doneness, adjusting the cooking time to your preferred level.
During the final minute of cooking, place a slice of Swiss cheese on each burger and cover briefly to melt.
Step 6: Assemble the Burgers
Slice each biscuit in half.
If desired, lightly butter and toast the cut sides.
Place the burger on the bottom half of the biscuit.
Top generously with the caramelized onion and mushroom mixture.
Finish with the biscuit top and serve immediately.
For extra flavor, add a spoonful of garlic herb aioli or Dijon mustard to the biscuit before assembling.
An internal temperature of 160°F is recommended for ground beef.
Keep the biscuit dough cold for the flakiest texture.
The mushroom and onion mixture can be prepared one day ahead and gently reheated before serving.
These biscuits also freeze well. Bake, cool completely, and freeze in an airtight container for up to three months.
Serve with gluten-free French fries, roasted potato wedges, grilled vegetables, or a crisp garden salad.
