Fontina Mushroom Pesto Melts

Irresistible Mushroom Pesto Toasts with Melted Fontina: The Ultimate Crowd-Pleasing Appetizer

Prepare to elevate your appetizer game with these truly exceptional Mushroom Pesto Toasts with Fontina Cheese. They are not merely snacks; they are a culinary experience – unique, sophisticated, and guaranteed to be a massive hit at any gathering. Imagine the earthy depth of wild porcini mushrooms harmoniously blended with the savory notes of fresh sautéed crimini mushrooms, brightened by the aromatic punch of roasted garlic, the subtle crunch of walnuts, the freshness of parsley, and the sharp tang of Pecorino cheese. This combination creates an irresistible pesto that forms the heart of these delightful toasts.

Each slice of crispy French bread is generously spread with this incredible mushroom pesto, then topped with luscious, melting Fontina cheese. A quick toast in the oven transforms them into golden, bubbly bites of pure joy. Serve them warm and watch as your guests eagerly reach for more, their smiles confirming you’ve found a new favorite.

For those who appreciate the rich flavor of porcini mushrooms, you might also want to explore my renowned Creamy Wild Mushroom Sauce. It’s an absolutely amazing creation that perfectly showcases the versatility of these beloved fungi.

This culinary adventure was originally shared on May 29, 2014, and has since been updated to provide even more delicious details and helpful information.

This post may contain affiliate links. You can read my disclosure policy HERE.

Mushroom pesto toast with fontina cheese and parsley on a baking sheet, ready to be served.

Mushroom Pesto Toasts: Your Go-To Appetizer for Any Occasion

The inspiration for these exquisite Mushroom Pesto Toasts struck me during a casual viewing of Food Network. I remember watching Bobby Flay prepare his Grilled French Bread Pizza with Mushroom Pesto and Fontina Cheese on an outdoor grill. While his method was perfect for a sunny day, I found myself in the midst of a particularly brutal New York winter, with frigid temperatures making outdoor grilling an impossible dream. But the concept of a mushroom pesto and Fontina combination was too enticing to let go.

Necessity, as they say, is the mother of invention. Instead of the grill, I opted for a pan to sauté my mushrooms, and the trusty oven to bake my toasts to golden perfection. I decided to make this refined appetizer for some house guests, and let me tell you, my oven-baked version of these mushroom pesto toasts turned out to be an absolute triumph. My guests and I were, quite literally, in culinary heaven.

The experience was truly unforgettable. The deep, earthy richness of the mushroom pesto, enhanced by the subtle, salty notes of Pecorino Romano, provided an incredible foundation. Then came the Fontina cheese – smooth, buttery, and melting into a gooey, irresistible layer. Each bite was a symphony of textures and flavors that created a happy dance on my palate. My guests raved about them, unequivocally favoring these toasts over every other dish I had prepared that day. They simply couldn’t get enough, making me realize I had stumbled upon something truly special.

So, if you’re searching for an appetizer that is guaranteed to impress and satisfy, look no further. These amazing Mushroom Pesto Toasts with Fontina Cheese are your answer. Prepare to delight your crowd and create a memorable dining experience.

Golden brown toasts with melted Fontina cheese and a sprinkle of fresh parsley on a baking sheet.

Unveiling the Key Ingredients for Perfect Mushroom Pesto Toasts

Crafting these delectable Mushroom Pesto Toasts requires a selection of fresh, high-quality ingredients that work in harmony to create their signature flavor. Here’s a detailed look at what you’ll need to add to your grocery list for this awesome recipe:

  • Dry Porcini Mushrooms: These are the secret weapon, providing an intense, deeply umami flavor that cannot be replicated. Rehydrating them not only brings them back to life but also creates a flavorful liquid.
  • Crimini Mushrooms: Also known as baby bellas, these offer a robust, earthy flavor and a firm texture that holds up beautifully when sautéed, complementing the porcini.
  • Garlic: We’re not just adding raw garlic; we’re roasting an entire head. This process mellows its sharpness, transforming it into a sweet, creamy, and wonderfully aromatic pulp that adds incredible depth to the pesto.
  • Walnuts: Providing a pleasant crunch and a slightly bitter, nutty flavor, walnuts are a classic pesto ingredient that adds complexity and texture.
  • Pecorino Cheese: This hard, salty Italian cheese, made from sheep’s milk, delivers a sharp, tangy, and savory kick, enhancing the overall richness of the pesto.
  • Parsley (Italian flat-leaf): Fresh Italian parsley contributes a vibrant, herbaceous note, adding color and a clean finish to the pesto.
  • Fresh Thyme: Earthy and slightly floral, fresh thyme adds another layer of aromatic complexity that pairs wonderfully with mushrooms.
  • Fontina Cheese: The star of the topping, Fontina is a semi-soft Italian cheese known for its exceptional melting qualities. It becomes incredibly gooey, buttery, and slightly nutty when heated, creating that irresistible cheesy layer.
  • Extra Virgin Olive Oil: A good quality extra virgin olive oil is crucial for the pesto, binding the ingredients together and adding its characteristic fruity, peppery notes.
  • French Bread: Choose a fresh, crusty loaf of French bread. Its firm crust and airy interior provide the perfect base for these robust toasts, offering a satisfying crunch without being too dense.

For precise measurements, detailed step-by-step instructions, and an easily printable format, please refer to the comprehensive recipe card located below. It’s designed to guide you through every stage of preparation, ensuring perfect results every time.

Mushroom pesto toasts topped with melted cheese and fresh parsley, resting on a silver baking sheet.

Tips for Crafting the Perfect Mushroom Pesto Toasts

Achieving the sublime flavor and texture of these toasts is straightforward, but a few key tips can elevate your results:

  • Rehydrating Porcini Mushrooms: Don’t discard the porcini soaking liquid! After carefully removing the mushrooms (leaving any grit behind), strain the liquid through a fine-mesh sieve or cheesecloth. This concentrated mushroom broth is liquid gold and can be used in your pesto (a few tablespoons) or saved for other recipes like risotto or sauces.
  • Sautéing Crimini Mushrooms: The trick to perfectly browned and flavorful crimini mushrooms is not to overcrowd your pan. Work in batches if necessary. Also, resist the urge to stir them constantly. Let them sit undisturbed for the initial few minutes to develop a beautiful sear and release their moisture properly before seasoning.
  • Roasting Garlic for Sweetness: Roasting the garlic is a game-changer. It transforms sharp, pungent raw garlic into a sweet, creamy, and mellow paste that integrates beautifully into the pesto without overpowering the delicate mushroom flavors.
  • Pesto Consistency: When blending the pesto, add the extra virgin olive oil slowly and gradually. This emulsifies the pesto, creating a smooth, rich consistency. You want it spreadable, not oily or chunky. Adjust with a tablespoon or two of the porcini soaking liquid if needed to reach your desired texture.
  • Quality Cheese Matters: The Fontina cheese is crucial for that gooey, melt-in-your-mouth experience. Opt for a good quality Fontina for the best flavor and texture. Pecorino Romano adds a sharp, salty counterpoint; don’t substitute with a milder cheese if you want that distinctive zest.
  • The Best Bread Base: A sturdy, crusty French baguette is ideal. It crisps up beautifully in the oven, providing a perfect contrast to the creamy pesto and melted cheese. Slice it to an appropriate thickness (about 2 inches) so it can hold the toppings without becoming soggy.
  • Serving Immediately: These toasts are best served hot, straight from the oven, when the Fontina is perfectly melted and bubbly, and the bread is crisp.

Delicious Variations to Explore

While the classic recipe is outstanding, don’t hesitate to experiment with these delightful variations:

  • Herbaceous Boost: Add a sprig of fresh rosemary or sage to the pesto blend for an even more aromatic profile.
  • Cheesy Alternatives: While Fontina is superb, you can experiment with other melting cheeses like Gruyere for a nutty note, or a blend of mozzarella and provolone for a classic Italian touch.
  • A Hint of Heat: For those who enjoy a little kick, a pinch of red pepper flakes can be added to the pesto or sprinkled over the toasts before baking.
  • Vegan Adaptation: To make this recipe vegan, replace the Pecorino and Fontina with nutritional yeast for cheesy flavor and your favorite plant-based melting cheese alternative. Use vegetable broth for rehydrating porcini.
  • Add-ins: For an extra layer of flavor, consider adding a sprinkle of caramelized onions or finely chopped sun-dried tomatoes on top of the pesto before adding the Fontina.

Other Mushroom Recipes to Enhance Your Repertoire

If you’re a mushroom enthusiast, you’ll love exploring these other incredible recipes:

  • Mushroom Pork Chops with Garlic and Butter
  • Pork Chops in White Wine Cream Sauce with Mushrooms
  • Hungarian Mushroom Soup
  • Chicken Chasseur (French Hunter’s Chicken)
  • Wild Mushroom Risotto with Bacon and Leeks
  • Mushroom Veggie Burger with Black Beans
  • Open Face Mushroom and Cheese Sandwich

Explore More Pesto Creations

Pesto is incredibly versatile! Here are some other delightful pesto recipes to inspire your culinary journey:

  • Lemon Basil Pesto Sauce
  • Burrata Pasta with Pesto
  • Pizzette with Roasted Peppers Pesto and Garlic Shrimp
  • Instant Pot Bean Soup with Spinach and Pesto
Mushroom pesto toast

Mushroom Pesto Toasts with Fontina Cheese

These Mushroom Pesto Toasts with Fontina Cheese are truly special, offering a unique and sophisticated flavor profile that makes them an undeniable crowd-pleaser. The secret lies in the deeply flavorful pesto, a masterful blend of earthy wild porcini mushrooms, fresh sautéed crimini mushrooms, sweet roasted garlic, crunchy walnuts, vibrant parsley, and salty Pecorino cheese. This irresistible mixture is spread generously onto slices of crispy French bread, then crowned with melty Fontina, toasted to perfection, and served warm. Prepare for rave reviews!

5 from 5 votes

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Course: Appetizer
Cuisine: European
Prep Time: 30 minutes
Cook Time: 15 minutes
Total Time: 45 minutes
Servings: 10
Calories: 439kcal
Author: Edyta

Ingredients

  • 1 ounce Dried porcini mushrooms (rehydrated for deep umami flavor)
  • 1 pound Cremini mushrooms (stems removed, cut into pieces for even sautéing)
  • 2 tablespoons Light Olive oil or Canola Oil (for sautéing)
  • 1 head Garlic (roasted for a sweet, mellow flavor)
  • ¼ cup Walnuts (toasted for enhanced nutty flavor)
  • ¼ cup Italian parsley (fresh, flat-leaf, for bright, herbaceous notes)
  • 2 tablespoons Fresh thyme leaves (for earthy aroma)
  • ¾ cup Extra Virgin Olive Oil (for the pesto base)
  • ¼ cup Pecorino Romano (plus 2 additional tablespoons for topping, freshly grated for best flavor)
  • 1 loaf French Bread (approximately 24 inches long, for a crispy base)
  • 2 1/2 cups Fontina cheese (grated, for that signature melty top)
  • Salt and freshly ground black pepper (to taste, for seasoning)

Instructions

Preparing the Roasted Garlic:

  • Begin by preheating your oven to 400 degrees F (200 degrees C).
  • Carefully slice off the very top of the garlic head, just enough to expose the cloves inside without separating them.
  • Place the prepared garlic head on a small piece of aluminum foil.
  • Drizzle generously with a little olive oil over the exposed garlic cloves. Wrap the foil around the garlic head to create a packet.
  • Roast in the preheated oven for approximately 30 minutes, or until the cloves are tender, lightly browned, and easily squeezable from their skins. Allow to cool slightly.

Crafting the Irresistible Pesto:

  • Place the dried porcini mushrooms in a small pot with hot water. Bring to a low simmer and let them rehydrate and cook gently for about 20 minutes, allowing their rich flavors to infuse the water.
  • Using a slotted spoon, carefully remove the rehydrated porcini mushrooms from the pot. Be mindful not to disturb the water too much, as sediment or dirt may have settled at the bottom. Transfer the mushrooms to the bowl of your food processor. You can add a few tablespoons of the strained porcini cooking water to the food processor for extra moisture and flavor, if needed.
  • In a large skillet, heat 2 tablespoons of cooking oil over medium-high heat. Add the cut-up cremini mushrooms in a single layer. For optimal browning, do not stir the mushrooms for the first 5 minutes. This allows them to develop a nice sear. Importantly, do not add salt at this stage, as salt will cause the mushrooms to release water and steam instead of browning.
  • After 5 minutes, stir the mushrooms, then season them with salt and freshly ground black pepper. Continue to cook for another 5 minutes, or until they are tender and golden brown.
  • Add the sautéed cremini mushrooms, the creamy pulp from the roasted garlic, toasted walnuts, fresh Italian parsley, and fresh thyme into the food processor with the porcini mushrooms. Process until all ingredients are finely chopped and well combined.
  • While the food processor is running, slowly stream in the extra virgin olive oil until the pesto achieves a smooth, spreadable consistency.
  • Finally, add ¼ cup of grated Pecorino Romano cheese and pulse a few times to thoroughly incorporate it into the pesto.
  • Taste the pesto and adjust seasoning with additional salt and pepper as needed.

Assembling and Baking the Toasts:

  • Preheat your oven once more to 400 degrees F (200 degrees C).
  • Slice the French bread loaf in half lengthwise, then cut each half into approximately 2-inch thick pieces. Generously spread a layer of the mushroom pesto onto each piece of bread. Top with grated Fontina cheese and a sprinkle of the remaining 2 tablespoons of Pecorino cheese for an extra cheesy crunch.
  • Lightly spray a baking sheet with non-stick cooking spray or line with parchment paper for easy cleanup.
  • Arrange the prepared bread pieces in a single layer on the baking sheet.
  • Bake in the preheated oven for 10-15 minutes, or until the Fontina cheese is beautifully melted, bubbly, and slightly golden, and the edges of the bread are crispy.
  • Carefully remove from the oven. For a final flourish, sprinkle with fresh Italian parsley before serving.
  • Serve immediately while hot and enjoy every delicious bite!

Notes

This delightful recipe is adapted from a concept by Bobby Flay.

Make-Ahead Tip: The mushroom pesto can be prepared up to 3 days in advance and stored in an airtight container in the refrigerator. Drizzle a thin layer of olive oil on top before sealing to prevent discoloration.

Storage: Leftover toasts are best enjoyed fresh, but can be stored in an airtight container in the fridge for up to 2 days. Reheat gently in a toaster oven or oven for best results.

Nutrition

Calories: 439kcal | Carbohydrates: 28g | Protein: 16g | Fat: 29g | Saturated Fat: 9g | Cholesterol: 40mg | Sodium: 503mg | Potassium: 351mg | Fiber: 2g | Sugar: 2g | Vitamin A: 380IU | Vitamin C: 3.2mg | Calcium: 247mg | Iron: 2.3mg
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