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 mins
Cook Time 20 minutes mins
Total Time 30 minutes mins
Course Appetizer, Snack
Cuisine Italian
Servings 6 servings
Calories 160 kcal
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
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.
Estimated Nutritional Value
- Calories: ~160–180 kcal
- Protein: 4–5g
- Carbohydrates: 15–18g
- Fat: 9–11g
- Fiber: 1–2g
- Sugar: ~2g
- Sodium: ~200mg
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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