Mushroom Swiss Burger

Mushroom Swiss Burger
⏱️ cook time 25 minutes
🍽️ servings 4
⚡ Difficulty easy

intro

Juicy seared beef patties topped with earthy sautéed mushrooms and melted nutty Swiss cheese on toasted brioche, a classic American comfort food staple.

Ingredients

80/20 lean-to-fat ground beef 680 grams (approx 1.5 lbs)
Sliced Emmental Swiss cheese 120 grams (4 thick 30g slices)
Cremini mushrooms, thinly sliced 225 grams (approx 2.5 cups sliced)
Brioche burger buns, split horizontally 4 units
Unsalted butter, divided 28 grams (2 tablespoons)
Garlic, minced, divided 8 grams (approx 3 cloves)
Worcestershire sauce 15 ml (1 tablespoon)
Kosher salt, divided 5 grams (1 teaspoon)
Freshly ground black pepper, divided 1 gram (½ teaspoon)
Full-fat mayonnaise 45 ml (3 tablespoons)

Steps

1

Form beef patties

Place 680g of 80/20 ground beef in a large mixing bowl, add 15ml (1 tablespoon) Worcestershire sauce, 2.5g (½ teaspoon) kosher salt, and 0.25g (¼ teaspoon) freshly ground black pepper. Gently fold the mixture with clean hands just until seasonings are evenly distributed—do not overwork the meat, as this creates tough patties. Divide the beef into 4 equal 170g portions, shape each into a 10cm-wide, 1cm-thick patty, and press a shallow 2cm dimple in the center of each to prevent bulging during cooking. Set formed patties on a plate and rest at room temperature for 10 minutes before cooking.

Step 1
step1:Form beef patties
2

Sauté mushroom topping

Heat 14g (1 tablespoon) unsalted butter in a large skillet over medium heat (175°C/350°F) until melted and lightly foaming. Add 225g of thinly sliced cremini mushrooms, cook for 8 minutes, stirring occasionally, until mushrooms are deep golden brown and all their released moisture has fully evaporated. Stir in 5g (approx 2 cloves) minced garlic, 1.25g (¼ teaspoon) kosher salt, and 0.25g (¼ teaspoon) black pepper, cook for 1 additional minute until garlic is fragrant. Transfer cooked mushrooms to a small bowl and cover with foil to keep warm.

Step 2
step2:Sauté mushroom topping
3

Mix garlic aioli

In a small prep bowl, stir together 45ml (3 tablespoons) full-fat mayonnaise, 3g (approx 1 clove) minced garlic, and a tiny pinch of black pepper until completely smooth. Cover the bowl and refrigerate until ready to assemble burgers to let the garlic flavor meld.

Step 3
step3:Mix garlic aioli
4

Sear beef patties

Heat a large cast iron skillet or outdoor gas grill to medium-high heat (205°C/400°F). Place the rested patties on the hot cooking surface, and do not move or press them for 4 full minutes to develop a thick, deep brown crust. Flip each patty once with a spatula, cook for an additional 3 minutes for medium doneness (internal temperature 71°C/160°F). Top each patty with one 30g slice of Swiss cheese during the last 1 minute of cooking, then cover the skillet or close the grill lid to trap heat and melt the cheese fully. Transfer patties to a clean plate to rest for 2 minutes.

Step 4
step4:Sear beef patties
5

Toast brioche buns

Brush the cut sides of the 4 split brioche buns with the remaining 14g (1 tablespoon) melted unsalted butter. Place buns cut-side down on the same warm skillet or grill surface over medium heat for 1 minute, until the cut surfaces are golden brown and slightly crisp. Remove toasted buns from heat and set on a clean plate.

Step 5
step5:Toast brioche buns
6

Assemble final burgers

Spread roughly 1 tablespoon of the prepared garlic aioli evenly across the cut sides of each toasted bun. Set one cheese-topped beef patty on each bottom bun, spoon ¼ of the warm sautéed mushroom mixture over the melted cheese, then place the top bun to finish. Serve immediately while patties are hot and cheese is melted.

Step 6
step6:Assemble final burgers

Tips

1.Avoid overworking ground beef when mixing and forming patties—excessive squeezing or stirring creates tough, dense burgers instead of tender, juicy ones.
2.The shallow dimple in the center of each raw patty counteracts the meat’s tendency to puff up as it cooks, keeping patties flat and easy to top evenly.
3.Wait until the last minute to top patties with cheese, and cover the cooking surface to trap steam—this creates a smooth, fully melted cheese layer instead of rubbery, partially melted slices.

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Mushroom Swiss Burger:Frequently Asked Questions

1.Why do you recommend 80/20 lean-to-fat ground beef instead of a leaner blend for this burger?
That 20% fat content is non-negotiable for juicy, deeply flavorful patties that don’t dry out during high-heat searing—you won’t even need extra binders like breadcrumbs or egg to hold them together. The rendered beef fat adds rich savoriness that cuts through nutty Swiss and earthy mushrooms, while leaner blends like 90/10 will turn out tough and bland even if cooked perfectly.
2.My sautéed mushrooms always turn out soggy and watery—what’s the trick to getting them right for this burger?
Two key tips: don’t overcrowd the pan, and don’t salt them too early. Cook your thinly sliced creminis in a single layer over medium-high heat with a pat of butter, and leave them undisturbed for the first 3 to 4 minutes so they caramelize. Wait to add salt until after they’re golden brown—salting early draws out excess moisture that leaves mushrooms mushy instead of tender and deeply flavored.
3.Can I use a different cheese if I can’t find Emmental Swiss for this recipe?
Absolutely! The closest swap is low-moisture Gruyère, which has the same nutty, smooth-melting profile that pairs perfectly with beef and mushrooms. Skip processed pre-sliced Swiss if you can—it has added stabilizers that make it melt unevenly. If pre-sliced is all you have, let slices sit at room temperature for 10 minutes before adding to hot patties for a smoother, even melt.
4.How do I keep my soft brioche buns from getting soggy once I stack the burger?
Use the divided unsalted butter to toast the cut sides of the brioche buns first! Melt a small pat of butter in a skillet over medium heat, then press the cut side of each bun half down for 1 to 2 minutes until golden and crisp. That buttery toasted crust creates a moisture barrier that stops patty drippings, melted cheese, and mushroom juices from soaking into the soft bun. You can also toast them on grill grates for a subtle smoky kick if cooking outdoors.

Comments (6)

2 hours ago

OMG, this mushroom swiss burger was a total game changer for our weekly family dinner night! I sautéed the mushrooms a little extra with a splash of Worcestershire like my grandma used to, and my husband and two kids devoured every single bite. Even my super picky 7 year old asked for seconds! So easy to throw together on a busy weeknight too, 25 minutes is no joke.

30 minutes ago

Wait the Worcestershire add-in sounds chef’s kiss! Did you put it in the mushrooms while they were cooking or mix it into the burger patties?

5 minutes ago

Love that Worcestershire hack! Adding a splash to the cooking mushrooms is such a great way to amp up that umami flavor — so glad your whole family enjoyed the recipe!

3 days ago

Made these for a backyard potluck last weekend and they were gone in 10 minutes flat. The melted Swiss oozing over the sautéed mushrooms is *chef’s kiss* — no dry, boring burgers here! Only note: I toasted the brioche buns on the grill for a minute and it took the whole thing to the next level.

2 days ago

Toasting the brioche buns is such a smart call! Nothing beats that little crunch against the juicy patty and melty cheese, so happy these were a hit at your potluck!

1 week ago

I meal prepped the patties and pre-cooked the mushrooms on Sunday so I could throw these together for quick lunches all week. SO good — way better than the fast food mushroom swiss I used to grab on my lunch break! The cook time is totally accurate too, even when I’m rushing between meetings. Only reason it’s not a 5 is I wish there was a little tip for keeping the mushrooms from getting soggy when stored for meal prep, but overall fantastic!

yesterday

Wait this was my first time ever making burgers from scratch and it was so easy! I was nervous I’d mess up the patties but the instructions were super straightforward. The only mishap was I burned the first batch of mushrooms oops, but the second batch turned out perfect. 10/10 will make again for my roommates.

2 hours ago

Same! I burned my mushrooms too when I made this last week, I turned the heat up too high lol. Low and slow is the move for those, right?

30 minutes ago

So proud of you for making homemade burgers for the first time! No shame in the burned mushroom batch — cooking them over medium-low heat with a little butter keeps them nice and golden without burning, you’ll nail it every time next go around!

5 days ago

Made these after a long morning hike with my partner last Saturday, and they hit the spot so hard. We used cremini mushrooms instead of regular white ones and added a little garlic powder to the patty seasoning, unreal. Will be adding this to our regular post-hike meal rotation for sure.

3 days ago

Cremini mushrooms are such a great swap, they have such a deeper, earthier flavor that pairs perfectly with the Swiss! Love that this works as a perfect post-hike refuel meal.

just now

Wait why did I sleep on mushroom swiss burgers for so long? This recipe is so simple but the flavor is out of this world. I added a little smear of Dijon to the bottom bun and *chefs kiss* — no extra fancy ingredients needed, just straight up good comfort food. My only regret is not making a double batch.