If you’re craving a burger that’s bursting with flavor yet wonderfully simple to make, then let me introduce you to this Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe. This dish transforms humble portobello mushrooms into juicy, cheesy patties crowned with sweet, golden onions and creamy Gouda. It’s a perfect vegetarian delight that feels indulgent and satisfying, taking under 20 minutes from prep to plate. Trust me, these burgers will quickly become a favorite comfort food that impresses everyone at the table.
Ingredients You’ll Need
All the ingredients in this Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe come together to create layers of flavor and texture without any fuss. Each element is essential, bringing a perfect balance of juiciness, sweetness, and creaminess to the final burger experience.
- 4 portobello mushrooms: These serve as the meaty, earthy burger “patties” and provide a wonderful bite and texture.
- 1 large sweet onion: When caramelized, it adds that rich sweetness that contrasts beautifully with the savory mushrooms.
- 4 tablespoons unsalted butter: Divided use brings richness to both the onions and the mushrooms for a luscious finish.
- 3 tablespoons olive oil: Helps in sautéing and adding a silky, smooth mouthfeel without overpowering flavors.
- 1 ½ teaspoon kosher salt: Spread throughout the recipe to enhance the natural flavors without making anything salty.
- 1 teaspoon garlic powder: Adds a subtle depth and enhances the umami of the mushrooms.
- 1 cup Gouda cheese: Melts beautifully inside the mushrooms to create a creamy, gooey surprise in every bite.
- 2 cups arugula: Adds a peppery freshness that cuts through the richness of the other ingredients.
- ¼ cup Truff spicy mayonnaise (or plain mayo): Brings a hint of spice and creaminess that ties the whole burger together perfectly.
- 4 burger buns: Soft and slightly toasted, perfect for holding all those delicious layers without falling apart.
How to Make Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe
Step 1: Caramelize the Onions
Start by cutting the onion in half and peeling it. Thinly slice the onion so it cooks evenly. Heat a medium pan over medium heat and add 1 tablespoon of butter and 2 tablespoons olive oil to give the onions a rich cooking base. Sprinkle in 1 teaspoon of kosher salt, which helps draw out moisture and speeds caramelization. Cook the onions, stirring often, for about 15 minutes until they become soft, golden, and irresistibly sweet. This slow caramelization unlocks their natural sugars and builds the foundational sweetness for our burger.
Step 2: Prepare the Mushrooms
While the onions are cooking, grab your portobello mushrooms. Clean them gently, then remove the stems and scoop out the dark gills using a spoon—this helps avoid any bitterness and creates a perfect cavity for the cheese. Brush each mushroom on both sides with 1 tablespoon of olive oil, then season with ½ teaspoon kosher salt and 1 teaspoon garlic powder. The garlic powder will boost the “umami” flavor, making the mushrooms taste meatier and more savory.
Step 3: Cook the Mushrooms
Heat another pan over medium-low heat and melt 3 tablespoons of butter. Place the mushrooms top side up and press gently to maximize the surface contact with the pan. Cover with a lid and cook for 5 minutes—this gentle cooking softens the mushrooms and helps retain moisture for a juicy final product.
Step 4: Add the Gouda and Finish Cooking
Flip the mushrooms carefully, then generously distribute the shredded Gouda inside each mushroom cap. Cover again and lower the heat to low; allow the cheese to melt and the mushrooms to cook another 4-5 minutes. After this, spoon the golden caramelized onions on top of each mushroom and remove the pan from the heat. This step transforms the mushrooms into luscious, melty, flavor-packed “patties” you won’t believe are vegetarian.
Step 5: Assemble Your Burgers
Toast your burger buns if you like a bit of crunch and warmth. Spread the Truff spicy mayonnaise evenly on both buns—it adds a little kick that makes the flavor pop. Layer some fresh, peppery arugula on the bottom bun, top with a cheesy mushroom and that wonderful onion, then crown with the top bun. This Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe is now ready to devour!
How to Serve Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe
Garnishes
Adding simple garnishes like fresh slices of tomato or pickle chips brings brightness and a bit of acidity that perfectly complement the rich mushrooms and cheese. A few extra leaves of arugula on top add color and crunch, while a dusting of freshly cracked black pepper can enhance the earthy flavors brilliantly.
Side Dishes
These mushroom burgers pair beautifully with crispy sweet potato fries or a fresh green salad with vinaigrette to balance out the richness. Roasted vegetables or even a bowl of tangy coleslaw are also fantastic companions that keep the meal fresh and satisfying without overpowering the burger.
Creative Ways to Present
For a fun twist, try serving these Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe on toasted ciabatta or pretzel buns for extra texture. You could also stack them open-faced with extra arugula and roasted red peppers for a visually stunning presentation that’s perfect for impressing guests or enjoying a special weeknight dinner.
Make Ahead and Storage
Storing Leftovers
Place any leftover mushroom burgers in an airtight container and refrigerate for up to 3 days. It’s best to store the mushrooms separately from the buns to prevent sogginess and maintain the perfect texture when reheating.
Freezing
You can freeze the cooked mushrooms (without buns) in a freezer-safe container or bag for up to 2 months. When ready to eat, thaw them overnight in the fridge for the best results and melt the cheese gently when reheating.
Reheating
To reheat, warm the mushrooms in a covered pan over low heat to keep them juicy and melt the cheese again. Toast the buns separately in a skillet or toaster oven before assembling your burger to keep everything fresh and delicious.
FAQs
Can I use other types of mushrooms for this recipe?
Absolutely! While portobello mushrooms are ideal for their size and meaty texture, cremini or large button mushrooms can also work. Just expect smaller “patties” and adjust cooking time accordingly.
Is Gouda the only cheese that works for these burgers?
Not at all! Gouda melts beautifully and has a mild smoky flavor, but feel free to experiment with cheeses like cheddar, Swiss, or even mozzarella depending on your preference.
Can I make this recipe vegan?
Yes. Substitute the butter with vegan butter or olive oil, use a plant-based cheese that melts well, and swap out mayo for a vegan alternative. The flavors will still be fantastic!
How spicy is the Truff spicy mayonnaise?
It has a mild to moderate heat with a rich, garlicky flavor. You can always use plain mayonnaise or your favorite spicy sauce if you prefer less heat.
What is the best way to clean portobello mushrooms?
Use a damp paper towel or soft brush to gently wipe off any dirt. Avoid soaking mushrooms in water as they absorb liquids and become soggy.
Final Thoughts
This Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe is proof that simple ingredients can create magic in your kitchen. It’s a quick, flavorful, and satisfying meal that’s perfect for any day of the week. Give it a try—you’re going to love how these hearty mushrooms and sweet onions come together with melty Gouda for a truly unforgettable burger experience.
Print
Easy Mushroom Burgers with Caramelized Onions and Gouda Recipe
- Prep Time: 5 minutes
- Cook Time: 15 minutes
- Total Time: 20 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: American
- Diet: Vegetarian
Description
These Easy Mushroom Burgers are a delicious and quick vegetarian alternative to traditional beef burgers, featuring juicy portobello mushrooms topped with caramelized onions, melted gouda cheese, and spicy Truff mayonnaise. Ready in just 20 minutes, they’re perfect for a satisfying meal any day of the week.
Ingredients
Mushrooms
- 4 portobello mushrooms (stem and gills removed)
- 1 teaspoon garlic powder
- ½ teaspoon kosher salt
- 1 tablespoon olive oil (for brushing mushrooms)
Onions
- 1 large sweet onion (thinly sliced)
- 1 tablespoon unsalted butter
- 2 tablespoons olive oil
- 1 teaspoon kosher salt
Additional Ingredients
- 3 tablespoons unsalted butter
- 1 cup gouda cheese (shredded, or your favorite cheese)
- 2 cups arugula (divided)
- ¼ cup Truff spicy mayonnaise (or plain mayonnaise)
- 4 burger buns
Instructions
- Prepare the Onions: Cut the sweet onion in half, remove the skin, and thinly slice it. Heat a medium pan over medium heat, then add 1 tablespoon of butter and 2 tablespoons of olive oil. Add the sliced onions along with 1 teaspoon of kosher salt and cook for 15 minutes, stirring often until the onions are soft and caramelized.
- Prep the Mushrooms: While the onions cook, remove the stems and scoop out the gills from the portobello mushrooms using a spoon. Brush both sides of each mushroom with 1 tablespoon of olive oil using a pastry brush. Season the mushrooms with ½ teaspoon kosher salt and the garlic powder for flavor.
- Cook the Mushrooms – Step 1: Heat another pan over medium-low heat and add 3 tablespoons of butter. Once melted, place the mushrooms top side up in the pan and press down slightly. Cover with a lid and let cook for 5 minutes to soften and begin cooking through.
- Cook the Mushrooms – Step 2 & Assemble: Flip the mushrooms over, then divide the shredded gouda cheese evenly inside each mushroom cap. Cover with the lid again, reduce the heat to low, and cook for an additional 4-5 minutes to melt the cheese thoroughly. Top the mushrooms with the caramelized onions, then remove them from heat.
- Toast and Assemble the Burgers: Toast the burger buns if desired. Spread the Truff spicy mayonnaise on both sides of each bun, layer with arugula, place the mushroom burger with cheese and onions on top, and cover with the top bun. Serve immediately and enjoy your easy mushroom burgers.
Notes
- You can substitute gouda cheese with mozzarella, Swiss, or cheddar if preferred.
- Use plain mayonnaise if you don’t have Truff spicy mayonnaise.
- To keep it vegan, substitute butter with vegan butter and cheese with a plant-based alternative.
- Make sure not to overcrowd the pan when cooking mushrooms; cook in batches if necessary.
