Mushroom Crostini

Mushroom crostini
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There’s something about simple, rustic appetizers that feel fancy without all the fuss. That’s exactly what mushroom crostini is—it’s the kind of dish you’d happily serve at a dinner party or just whip up for a cozy night in. Crispy toasted bread topped with a savory mushroom mixture? Yes, please. It’s earthy, satisfying, and effortlessly elegant.

Mushrooms have this amazing ability to soak up flavor while bringing their own rich, umami taste to the table. When you sauté them just right with garlic, herbs, and a touch of cream or wine (or both!), you get a topping that’s so good, people might think you ordered it from a trendy bistro. But the beauty of it? It’s ridiculously easy to make in your own kitchen.

What I love most about this mushroom crostini is how customizable it is. You can dress it up with a bit of truffle oil, sprinkle on some goat cheese or parmesan, or add a hint of lemon zest for brightness. Whether you’re a fan of wild mushrooms or prefer cremini or button mushrooms, this recipe gives you room to experiment. Plus, it’s vegetarian-friendly, which makes it a crowd-pleaser at gatherings.

So whether you’re hosting friends, planning a brunch spread, or just need a quick snack that feels special, mushroom crostini is your go-to. It’s comfort food with a touch of class—and once you try it, you’ll be adding it to your regular rotation.

Why You’ll Love It

  • It’s effortlessly elegant – With minimal ingredients and prep, mushroom crostini looks and tastes like something out of a fancy restaurant, perfect for entertaining or treating yourself.
  • Packed with umami flavor – The sautéed mushrooms, garlic, and herbs create a rich, savory topping that hits all the right notes.
  • Quick and easy to make – You can have these ready in under 30 minutes, making them ideal for last-minute get-togethers or a weeknight snack.
  • Customizable to your taste – Add cheese, drizzle with balsamic glaze, or mix in different herbs and mushrooms to make it your own.
  • Vegetarian-friendly – It’s a meat-free option that doesn’t skimp on flavor, so it works for a wide range of guests or dietary needs.

Ingredient List

For the Mushroom Topping:

  • 2 tablespoons olive oil
  • 1 tablespoon unsalted butter
  • 2 cloves garlic, minced
  • 1 small shallot, finely chopped
  • 10 oz (about 3 cups) mushrooms, sliced (cremini, button, or a mix)
  • 1 teaspoon fresh thyme leaves (or ½ tsp dried)
  • Salt and black pepper, to taste
  • 2 tablespoons dry white wine (optional)
  • 2 tablespoons heavy cream (optional)
  • Fresh parsley, chopped (for garnish)

For the Crostini:

  • 1 baguette, sliced into ½-inch thick rounds
  • 2 tablespoons olive oil (for brushing)
  • 1 garlic clove (optional, for rubbing on toast)
  • Grated parmesan or goat cheese (optional topping)

Ingredient Notes

  • Use a mix of mushrooms if you can—cremini, shiitake, or even oyster mushrooms add depth and variety to the flavor.
  • Don’t skip the shallot – it adds a delicate sweetness that balances the earthy mushrooms.
  • The wine is optional, but it gives the mushrooms a subtle, restaurant-style flavor boost.
  • Rubbing the crostini with garlic after toasting adds a lovely layer of flavor—super simple but so effective.
  • A sprinkle of cheese (parmesan or creamy goat cheese) at the end takes these over the top.

Kitchen Equipment Needed

  • Skillet or sauté pan – For cooking the mushrooms until golden and flavorful. I love using a nonstick or cast-iron skillet for even heat.
  • Bread knife – To slice the baguette cleanly without squishing it.
  • Baking sheet – Perfect for toasting the crostini evenly in the oven.
  • Pastry brush – Helps coat the bread slices lightly with olive oil for that golden crunch.
  • Garlic press or fine grater (optional) – Great for quickly prepping garlic if you want extra flavor rubbed onto the bread.
  • Small mixing bowl – Handy for tossing herbs or prepping garnishes.

Instructions

Step 1: Prep the Bread

  1. Preheat your oven to 375°F (190°C).
    This gets your oven nice and hot so the bread crisps up quickly.
  2. Slice the baguette into ½-inch rounds.
    Try to keep them uniform so they toast evenly.
  3. Arrange the slices on a baking sheet.
    Lay them in a single layer without overlapping.
  4. Brush the tops lightly with olive oil.
    A pastry brush works best here. Flip and brush the other side if you like both sides golden.
  5. Bake for 8–10 minutes, or until golden and crisp.
    Keep an eye on them—some ovens run hot. Pro Tip: Want extra flavor? As soon as they come out, rub a peeled garlic clove over the top of each toast while it’s still warm.

Step 2: Cook the Mushrooms

  1. Heat olive oil and butter in a skillet over medium heat.
    The combo gives you great flavor and helps the mushrooms brown nicely.
  2. Add the chopped shallot and sauté for 2–3 minutes.
    Stir until it softens and becomes fragrant.
  3. Toss in the garlic and cook for another 30 seconds.
    Don’t let it brown—it gets bitter fast.
  4. Add the sliced mushrooms and thyme.
    Stir to coat them in the oil and butter.
  5. Let the mushrooms cook undisturbed for 3–4 minutes.
    This helps them brown instead of steaming.
  6. Continue to cook for another 4–5 minutes, stirring occasionally, until deeply golden.
    Season with salt and black pepper to taste. Pro Tip: Mushrooms release a lot of water—don’t overcrowd the pan or they’ll steam instead of brown.

Step 3: Deglaze and Finish the Filling

  1. Pour in the white wine (if using).
    Scrape the bottom of the pan with a wooden spoon to lift all that flavorful fond.
  2. Simmer for 1–2 minutes, until the wine mostly evaporates.
    It should smell rich and slightly tangy.
  3. Stir in the heavy cream (if using).
    Cook for 1–2 minutes more, just to warm everything through and give it a touch of richness.
  4. Taste and adjust seasoning as needed.
    A little extra salt, pepper, or even a squeeze of lemon can balance the flavors.

Step 4: Assemble the Crostini

  1. Spoon the warm mushroom mixture onto each toasted baguette slice.
    Don’t be shy—pile it on!
  2. Top with a sprinkle of fresh parsley.
    It adds color and freshness.
  3. Add optional toppings like grated parmesan or goat cheese.
    This takes them from great to next-level delicious.
  4. Serve warm or at room temperature.
    They’re perfect for snacking, sharing, or starting a cozy dinner.
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Tips and Tricks for Success

  • Use a hot pan for the mushrooms – Let the skillet get nice and hot before adding mushrooms so they sear and brown instead of steaming.
  • Don’t overcrowd the pan – Cook mushrooms in batches if needed. Too many at once will cause them to release moisture and turn soggy.
  • Toast the bread until crisp, not just golden – This ensures it holds up under the mushroom topping without getting soggy.
  • Make ahead-friendly – You can prep the mushroom mixture a few hours in advance and reheat gently before serving.
  • Serve immediately for best texture – Once assembled, the crostini are best eaten within 15–20 minutes to keep the bread crisp.

Ingredient Substitutions and Variations

  • No shallots? Use finely chopped onion instead—yellow or sweet onions work best.
  • Swap the wine – Use a splash of veggie broth or even water with a squeeze of lemon juice if you want to skip alcohol.
  • Dairy-free version – Omit the butter and cream or use dairy-free alternatives like olive oil and coconut cream.
  • Add cheese – Try a smear of goat cheese or a sprinkle of blue cheese or parmesan for a richer bite.
  • Go herby – Fresh rosemary, sage, or chives can be added instead of thyme for a flavor twist.
  • Make it spicy – A pinch of red pepper flakes gives it a subtle kick that pairs beautifully with the earthy mushrooms.
  • Try different mushrooms – Mix in wild mushrooms like chanterelles or porcini for a more gourmet take.

Serving Suggestions

  • As an appetizer for dinner parties – Serve on a large platter with a sprinkle of fresh herbs and a drizzle of balsamic glaze for a wow-worthy presentation.
  • With soup or salad for a light meal – Pair with a creamy tomato soup or a fresh arugula salad with lemon vinaigrette—it’s simple, satisfying, and feels like a café lunch.
  • Topped with a poached egg for brunch – Trust me, the runny yolk over the savory mushrooms is chef’s kiss good.
  • Alongside a charcuterie board – These crostini make a beautiful addition to a board with cheeses, olives, and nuts for a casual, build-your-own-bite kind of evening.
  • I love serving these with a glass of chilled white wine or sparkling water and a side of marinated olives – It’s my go-to when I want something fancy but low-effort.
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Storage and Reheating Instructions

  • Store the mushroom topping separately – Keep it in an airtight container in the fridge for up to 3 days.
  • Reheat gently on the stovetop – Warm the mushroom mixture in a skillet over low heat, adding a splash of water or cream if it looks too thick.
  • Toast fresh bread before serving – Only assemble the crostini when ready to eat to keep the bread crisp.
  • Don’t freeze the assembled crostini – The bread will get soggy. If needed, you can freeze the mushroom mixture on its own.
  • Leftover toasts? Pop them in a 350°F (175°C) oven for a few minutes to re-crisp before using.

Frequently Asked Questions

Can I make mushroom crostini ahead of time?

Yes, you can prep the mushroom topping a day in advance! Just store it in the fridge and reheat gently before serving. Wait to toast and assemble the bread until just before serving for the best texture.

What’s the best bread to use?

A French baguette works perfectly because it’s firm and crisps up well in the oven. You can also use sourdough or ciabatta, sliced into smaller pieces.

Can I make it vegan?

Absolutely! Use olive oil instead of butter and skip the cream or swap it for coconut cream or a splash of almond milk. The flavor still shines without the dairy.

How do I prevent the crostini from getting soggy?

Make sure the bread is fully toasted and don’t add the topping until just before serving. You can also add a layer of cheese or hummus first to act as a moisture barrier.


What kind of mushrooms work best?

Cremini, white button, and shiitake are great go-to options. You can also use a mix of wild mushrooms if you’re feeling fancy!

Can I freeze the mushroom topping?

You can! Let it cool completely, then freeze in an airtight container. Thaw overnight in the fridge and reheat in a skillet with a splash of water or broth.


Did you try this recipe? Let me know in the comments how it turned out!
Don’t forget to share your photos on Instagram and tag me @tasiahub_ or use the hashtag #tasiahub. I’d love to see your creations!

Mushroom crostini

Mushroom Crostini

What I love most about mushroom crostini is how customizable it is. You can dress it up with a bit of truffle oil, sprinkle on some goat cheese or parmesan, or add a hint of lemon zest for brightness.
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Appetizer, Snack
Cuisine Italian
Servings 6 servings
Calories 160 kcal

Equipment

  • Skillet or sauté pan
  • Bread knife
  • Baking Sheet
  • Pastry Brush
  • Garlic press or fine grater (optional)
  • Small mixing bowl

Ingredients
  

For the Mushroom Topping:

  • 2 tablespoons olive oil
  • 1 tablespoon unsalted butter
  • 2 cloves garlic minced
  • 1 small shallot finely chopped
  • 10 oz about 3 cups mushrooms, sliced (cremini, button, or a mix)
  • 1 teaspoon fresh thyme leaves or ½ tsp dried
  • Salt and black pepper to taste
  • 2 tablespoons dry white wine optional
  • 2 tablespoons heavy cream optional
  • Fresh parsley chopped (for garnish)

For the Crostini:

  • 1 baguette sliced into ½-inch thick rounds
  • 2 tablespoons olive oil for brushing
  • 1 garlic clove optional, for rubbing on toast
  • Grated parmesan or goat cheese optional topping

Instructions
 

Step 1: Prep the Bread

  • Preheat your oven to 375°F (190°C).
  • This gets your oven nice and hot so the bread crisps up quickly.
  • Slice the baguette into ½-inch rounds.
  • Try to keep them uniform so they toast evenly.
  • Arrange the slices on a baking sheet.
  • Lay them in a single layer without overlapping.
  • Brush the tops lightly with olive oil.
  • A pastry brush works best here. Flip and brush the other side if you like both sides golden.
  • Bake for 8–10 minutes, or until golden and crisp.
  • Keep an eye on them—some ovens run hot.
  • Pro Tip: Want extra flavor? As soon as they come out, rub a peeled garlic clove over the top of each toast while it’s still warm.

Step 2: Cook the Mushrooms

  • Heat olive oil and butter in a skillet over medium heat.
  • The combo gives you great flavor and helps the mushrooms brown nicely.
  • Add the chopped shallot and sauté for 2–3 minutes.
  • Stir until it softens and becomes fragrant.
  • Toss in the garlic and cook for another 30 seconds.
  • Don’t let it brown—it gets bitter fast.
  • Add the sliced mushrooms and thyme.
  • Stir to coat them in the oil and butter.
  • Let the mushrooms cook undisturbed for 3–4 minutes.
  • This helps them brown instead of steaming.
  • Continue to cook for another 4–5 minutes, stirring occasionally, until deeply golden.
  • Season with salt and black pepper to taste.
  • Pro Tip: Mushrooms release a lot of water—don’t overcrowd the pan or they’ll steam instead of brown.

Step 3: Deglaze and Finish the Filling

  • Pour in the white wine (if using).
  • Scrape the bottom of the pan with a wooden spoon to lift all that flavorful fond.
  • Simmer for 1–2 minutes, until the wine mostly evaporates.
  • It should smell rich and slightly tangy.
  • Stir in the heavy cream (if using).
  • Cook for 1–2 minutes more, just to warm everything through and give it a touch of richness.
  • Taste and adjust seasoning as needed.
  • A little extra salt, pepper, or even a squeeze of lemon can balance the flavors.

Step 4: Assemble the Crostini

  • Spoon the warm mushroom mixture onto each toasted baguette slice.
  • Don’t be shy—pile it on!
  • Top with a sprinkle of fresh parsley.
  • It adds color and freshness.
  • Add optional toppings like grated parmesan or goat cheese.
  • This takes them from great to next-level delicious.
  • Serve warm or at room temperature.
  • They’re perfect for snacking, sharing, or starting a cozy dinner.

Notes

Estimated Nutritional Value

  • Calories: ~160–180 kcal
  • Protein: 4–5g
  • Carbohydrates: 15–18g
  • Fat: 9–11g
  • Fiber: 1–2g
  • Sugar: ~2g
  • Sodium: ~200mg
 
Share your thoughts! Rate and comment below if you tried this recipe.
 
Nutrition Disclaimer:
The nutritional information provided on this website is an estimate only and is intended for general guidance. We cannot guarantee its accuracy and recommend consulting a qualified healthcare professional or registered dietitian for personalized nutrition advice.
Keyword appetizer recipes, crostini recipes, mushroom crostini

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