This Mushroom Swiss Patty Melt is a tasty treat featuring a juicy beef patty topped with melty Swiss cheese and flavorful sautéed mushrooms. It’s grilled between crispy bread for ultimate yumminess!
You can’t go wrong with this classic combo! I love how the mushrooms add a rich flavor and make it feel a bit fancy while still being super easy to make. Perfect for lunch or dinner! 
Key Ingredients & Substitutions
Ground Beef: An 80/20 blend is perfect for a juicy burger, but you can swap it with ground turkey or plant-based meat for a lighter option. If you try turkey, consider mixing in some oil to keep it moist.
Swiss Cheese: Swiss cheese offers a nice melt and mild flavor. If Swiss isn’t available, try Gruyère for a similar taste or even cheddar for a sharper bite. Just remember, cheese is key for that creamy texture!
Mushrooms: Cremini mushrooms add a deep flavor, but white mushrooms work too. If you’re not a fan, you can leave them out or substitute with sautéed bell peppers for a different twist.
Onion: Sweet onions enhance the flavor with their nice caramelization. You can swap with shallots or even use red onion for a bit of zing. Just slice them thinly for even cooking.
Bread: Rye or sourdough adds a great depth to the sandwich. If you want a gluten-free option, use gluten-free bread. Don’t forget to toast it well for the best crunch!
What’s the Best Way to Cook the Burger Patties Without Them Puffing Up?
Creating perfect burger patties requires just a little technique. The indentation you make in the center is essential! It helps the patties cook evenly without puffing up.
- Season the beef with salt and pepper before forming patties.
- Gently press an indentation in the center of each patty; this keeps them flat while cooking and results in a better bite.
- Don’t press the patties too hard when cooking; this keeps juices in and helps them stay flavorful!
How Can I Get My Sandwich Grilled to Crispy Perfection?
Grilling the sandwich right is crucial for that satisfying crunch. Here are a few tips:
- Use medium heat to ensure the bread toasts without burning.
- Add a touch more butter to the pan if needed for extra crispiness.
- Press down gently with a spatula while grilling. This helps meld the ingredients together and gives you a delightfully crispy exterior.
How to Make Mushroom Swiss Patty Melt
Ingredients You’ll Need:
For the Patty Melt:
- 1 pound ground beef (80/20 blend)
- 4 oz Swiss cheese, sliced
- 1 cup mushrooms, sliced (white or cremini)
- 1 small onion, thinly sliced
- 4 slices of bread (rye or sourdough for best flavor)
For the Sauce:
- 1/2 cup mayonnaise
- 2 tablespoons Dijon mustard
Additional Ingredients:
- 2 tablespoons butter
- Salt and pepper to taste
How Much Time Will You Need?
This delightful Mushroom Swiss Patty Melt takes about 15 minutes to prepare and approximately 15 minutes to cook, making it a wonderful 30-minute meal to enjoy any time!
Step-by-Step Instructions:
1. Prepare the Burger Patties:
Start by seasoning the ground beef with salt and pepper in a bowl. Divide the meat into two equal portions and gently shape them into burger patties. Remember to make a small indentation in the center of each patty; this helps keep them flat while cooking!
2. Cook the Mushrooms and Onions:
Next, grab a skillet and set it over medium heat. Add 1 tablespoon of butter and let it melt, then toss in the sliced onions and mushrooms. Sauté them for about 5-7 minutes until the onions are soft and translucent and the mushrooms are tender. Season everything with a bit of salt and pepper, then set this mixture aside on a plate.
3. Cook the Patties:
In the same skillet, add the remaining tablespoon of butter and bump up the heat to medium-high. Place the burger patties in the skillet and cook them for about 3-4 minutes without moving them. Flip the patties over, place Swiss cheese on top of each one, and cover the skillet with a lid. Let them cook for another 3-4 minutes, or until they’re cooked to your liking and the cheese has melted beautifully.
4. Assemble the Sandwich:
While your patties are cooking, mix the mayonnaise and Dijon mustard together in a small bowl. Take each slice of bread and spread this mixture on one side. On the other side (the unspread side), layer one slice of bread down, add a cheesy patty on top, then generously pile on the sautéed mushrooms and onions. Finish with another slice of bread, spread-side up.
5. Grill the Sandwich:
Reheat your skillet over medium heat. Place the assembled sandwich in the skillet and grill it until the bread is golden brown and crispy, which should take about 3-4 minutes on each side. For an extra crispy texture, gently press down on the sandwich with your spatula as it cooks!
6. Serve:
Once the sandwich is perfectly golden on both sides, take it out of the skillet. Cut it in half, and serve hot. Enjoy your delicious Mushroom Swiss Patty Melt with your favorite side dish!
Can I Use Different Cheese in This Recipe?
Absolutely! While Swiss cheese gives a classic flavor, you can substitute it with provolone, mozzarella, or even cheddar for a different twist. Just keep in mind that the melting qualities may vary slightly!
What If I Don’t Have Mayonnaise?
No problem! If you’re out of mayonnaise, you can use Greek yogurt or sour cream as a creamy base. Alternatively, you could skip it altogether and add a little extra Dijon mustard for more tanginess.
Can I Make This Recipe Ahead of Time?
Yes! You can prepare the burger patties and sauté the mushrooms and onions a day in advance. Store them separately in the fridge. When you’re ready to assemble, just reheat the patties and vegetables before grilling the sandwich.
How Do I Store Leftovers?
Store any leftover sandwich halves in an airtight container in the refrigerator for up to 2 days. To reheat, place them in a skillet over low heat until warmed through, or pop them in the toaster oven for a crispy finish!
