This Mushroom Sandwich Toast with Grilled Gouda Cheese features the rich, savoury flavours of roasted mushrooms and onions, perfectly balanced with creamy, melted Gouda between crispy, golden slices of bread. 

It’s an easy-to-make, gourmet twist on a classic grilled cheese that offers a delightful combination of textures and tastes, making it a must-try for sandwich lovers.

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grilled mushroom cheese sandwich recipe

Ingredients:

  • Bread: 4 slices (sourdough or your favourite type)
  • Gouda Cheese: 4–6 slices
  • Mushrooms: 1 cup, sliced (button, cremini, or your choice)
  • Onion: 1 medium, thinly sliced
  • Garlic: 2 cloves, minced
  • Olive Oil: 2 tablespoons
  • Butter: 2 tablespoons, softened
  • Fresh Thyme: 1 teaspoon (optional)
  • Salt: to taste
  • Black Pepper: to taste

How To Make Grilled Mushroom Cheese Sandwich

Roasting the Mushrooms and Onions: 

Let’s kick things off by preheating your oven to a toasty 400°F (200°C). While it’s heating up, grab a bowl and toss those sliced mushrooms and onions with a generous drizzle of olive oil, minced garlic, salt, pepper, and if you’re feeling adventurous, a sprinkle of thyme for that extra flavor dimension.

Once everything is nicely coated, spread them out evenly on a baking sheet, ensuring they’re in a single, inviting layer.

Pop them into the preheated oven, and let the magic happen for about 20–25 minutes. Keep an eye on them, giving them a gentle stir halfway through for that perfect, even roast.

Preparing the Sandwich: 

While those veggies are getting their roast on, let’s focus on the star of the show — the sandwich. Grab your favorite bread slices and give one side of each a loving slather of butter. Now, heat up a skillet or griddle over a medium flame, getting it nice and cozy for our sandwich masterpiece.

Assembling the Sandwich: 

Once the skillet is warmed up and ready for action, it’s time to assemble. Place two slices of bread, buttered side down, onto the skillet. Now, here comes the gooey goodness — layer each slice with a generous handful of Gouda cheese slices.

Once those mushrooms and onions have achieved their golden glory in the oven, it’s time to bring them into the spotlight. Distribute them lovingly over the cheese-covered bread slices, ensuring each bite will be packed with flavor. Top it all off with the remaining bread slices, buttered side up, completing the delicious sandwich tower.

Grilling the Sandwich: 

Now, let’s get grilling! Place those assembled beauties onto the skillet and let them sizzle away until the bread turns a gorgeous golden brown, and the cheese transforms into a molten masterpiece. This should take around 3–4 minutes per side.

Don’t forget to give them a gentle press with a spatula for that perfect crispiness and even melting. Adjust the heat as needed to avoid burning the bread before the cheese gets its ooey-gooey moment.

Serving: 

As the sandwiches reach their pinnacle of perfection, carefully remove them from the skillet and let them cool for just a moment — though we know it’ll be hard to resist diving right in. Finally, grab a sharp knife and slice each sandwich in half, revealing the delectable layers within.

Serve them up warm, and watch as smiles spread around the table, one delicious bite at a time. Enjoy!

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Delicious Grilled Mushroom Sandwich

Tips To Make It Better:

  • Variations: Add a handful of fresh spinach or arugula inside the sandwich for an extra layer of flavour.
  • Cheese Alternatives: Swap Gouda with other cheeses like Swiss, Gruyere, or a sharp Cheddar for different taste profiles.
  • Extra Flavor: Spread a thin layer of Dijon mustard or mayonnaise on the inside of the bread slices before adding the cheese for additional flavour.

Enjoy your Mushroom Sandwich Toast with Grilled Cheese!

Common Mistakes People Make 

One common mistake people make with this recipe is overcrowding the baking sheet when roasting the mushrooms and onions. It’s essential to spread them out in a single layer to ensure even roasting and prevent them from steaming instead of roasting. Overcrowding can lead to soggy vegetables instead of achieving that desired caramelization.

Another mistake is using too much or too little olive oil when tossing the mushrooms and onions. Using too much oil can result in overly greasy vegetables, while using too little can lead to dryness and uneven cooking. It’s essential to find the right balance to coat the vegetables evenly for optimal flavor and texture.

When assembling the sandwich, some people may forget to butter the bread slices or only butter one side. Buttering both sides of the bread ensures that each bite is flavorful and helps achieve that crispy golden-brown exterior when grilling.

Which Type of Bread Is The Best For A Mushroom Sandwich?

For the best texture and flavor in a mushroom sandwich, consider these types of bread:

  1. Sourdough
  2. Ciabatta
  3. Baguette
  4. Whole-Grain
  5. Rye:

Which Type of Cheese Is The Best For A Mushroom Sandwich?

The best cheeses for a mushroom sandwich are those that complement the earthy, umami flavors of the mushrooms. Swiss cheese or Gruyère adds a nutty and slightly sweet taste that pairs well with sautéed or roasted mushrooms. Provolone offers a mild, creamy taste that melts beautifully, enhancing the overall texture of the sandwich. For a more intense flavor, goat cheese provides a tangy contrast that works exceptionally well with the rich taste of mushrooms.