Vegan Mushroom Crostini has become a staple in my kitchen for its irresistible flavors and easy preparation. This delightful appetizer features a combination of caramelized onions, earthy mushrooms, and luscious vegan cheese served on crusty baguette slices. Perfect for gatherings or a quick snack, it’s sure to impress your guests with its gourmet appeal.
Why You’ll Love This Vegan Mushroom Crostini
There are countless reasons to make this Vegan Mushroom Crostini your go-to appetizer. First and foremost, it’s a crowd-pleaser that can satisfy even non-vegans. The rich flavor of sautéed mushrooms and the creamy vegan mozzarella create a delectable combination. Additionally, this recipe is quick to prepare, taking only 35 minutes from start to finish, making it an ideal choice for busy weeknights or last-minute gatherings. It’s also versatile; you can easily adapt it with Vegan Crostini Topping Ideas to suit any palate. Plus, with its plant-based ingredients, it fits perfectly into a healthy vegan diet.

Ingredients for Vegan Mushroom Crostini
Gather these items:
- 1 tablespoon olive oil
- 1 large onion
- 1 teaspoon sugar
- 1 teaspoon salt
- 1 tablespoon balsamic vinegar
- 8 ounces cremini mushrooms
- 2 sprigs thyme
- 2 cloves garlic
- 1 cup vegan mozzarella shreds
- 1 tablespoon Maille Dijon Originale Mustard
- 1 tablespoon extra virgin olive oil
- 1 teaspoon balsamic vinegar
- 1 pinch black pepper
- 1 sprig fresh thyme
How to Make Vegan Mushroom Crostini Step-by-Step
- Step 1: Slice the Vegetables: Cut the onion in half and slice it thinly. Then, slice the cremini mushrooms.
- Step 2: Sauté the Onions: Heat 1 tablespoon of olive oil in a skillet. Add the onions and stir-fry for 2-3 minutes. Sprinkle in the sugar and salt, add balsamic vinegar, and cook for 5 more minutes.
- Step 3: Add the Mushrooms: Toss in the mushrooms, increasing the heat and cooking until they brown, about 8 minutes.
- Step 4: Incorporate the Garlic and Thyme: Add minced garlic and thyme, cooking for 2 more minutes.
- Step 5: Prepare the Oven: Preheat your oven to 400°F (200°C) and slice the baguette.
- Step 6: Arrange the Baguette Slices: Place baguette on a baking sheet, brush with olive oil, and top with mozzarella.
- Step 7: Toast to Perfection: Toast in the oven for 5 minutes until cheese is golden.
- Step 8: Mix the Dressing: Whisk together mustard, olive oil, and balsamic vinegar.
- Step 9: Assemble the Crostini: Top each baguette slice with the mushroom mixture, drizzle with dressing, season, and garnish with thyme.

Pro Tips for the Perfect Vegan Mushroom Crostini
Keep these in mind:
- Use fresh thyme for a more aromatic flavor.
- Don’t overcrowd the pan when sautéing mushrooms to ensure they brown evenly.
- Experiment with different types of mushrooms for varied flavors, like shiitake or portobello.
- Serve immediately for the best texture and taste.
Best Ways to Serve Vegan Mushroom Crostini
Here are a few ideas to elevate your serving experience:
- Serve alongside a fresh salad for a complete meal.
- Pair with a robust red wine to complement the earthy mushroom flavor.
- Consider offering a variety of Vegan Crostini Topping Ideas for guests to mix and match.
How to Store and Reheat Vegan Mushroom Crostini
To store leftovers, place your Vegan Mushroom Crostini in an airtight container in the fridge for up to 3 days. For reheating, use an oven or toaster oven to maintain the crispy texture, placing them in at 350°F (175°C) for about 5-10 minutes. This method ensures they remain just as delicious as the first time!
Frequently Asked Questions About Vegan Mushroom Crostini
What’s the secret to perfect Vegan Mushroom Crostini?
The secret lies in properly caramelizing the onions and mushrooms to enhance their natural sweetness, creating a rich flavor base. Use fresh herbs for added aroma and taste.
Can I make Vegan Mushroom Crostini ahead of time?
Absolutely! You can prepare the mushroom mixture in advance and store it in the fridge. Just toast the baguette and assemble right before serving for the best results.
How do I avoid common mistakes with Vegan Mushroom Crostini?
Avoid overcrowding the pan when sautéing the mushrooms; this prevents steaming and ensures proper browning. Also, serve the crostini immediately after assembling for optimal texture.
Variations of Vegan Mushroom Crostini You Can Try
Here are some delightful variations:
- For a Mediterranean twist, add sun-dried tomatoes and olives.
- Try a spicy version by incorporating crushed red pepper flakes.
- For a luxurious touch, drizzle with a Vegan Mushroom Crostini with Balsamic Glaze before serving.

Irresistible Vegan Mushroom Crostini for Your Next Snack
- Total Time: 35 minutes
- Yield: 4 servings 1x
- Diet: Vegan
Description
Irresistible Easy Vegan Mushroom Crostini for Your Next Snack
Ingredients
- 1 tablespoon olive oil
- 1 large onion
- 1 teaspoon sugar
- 1 teaspoon salt
- 1 tablespoon balsamic vinegar
- 8 ounces cremini mushrooms
- 2 sprigs thyme
- 2 cloves garlic
- 1 cup vegan mozzarella shreds
- 1 tablespoon Maille Dijon Originale Mustard
- 1 tablespoon extra virgin olive oil
- 1 teaspoon balsamic vinegar
- 1 pinch black pepper
- 1 sprig fresh thyme
Instructions
- Slice the Vegetables: Cut the onion in half and slice it thinly. Then, slice the cremini mushrooms.
- Sauté the Onions: Heat 1 tablespoon of olive oil in a skillet. Add the onions and stir-fry for 2-3 minutes. Sprinkle in the sugar and salt, add balsamic vinegar, and cook for 5 more minutes.
- Add the Mushrooms: Toss in the mushrooms, increasing the heat and cooking until they brown, about 8 minutes.
- Incorporate the Garlic and Thyme: Add minced garlic and thyme, cooking for 2 more minutes.
- Prepare the Oven: Preheat your oven to 400°F (200°C) and slice the baguette.
- Arrange the Baguette Slices: Place baguette on a baking sheet, brush with olive oil, and top with mozzarella.
- Toast to Perfection: Toast in the oven for 5 minutes until cheese is golden.
- Mix the Dressing: Whisk together mustard, olive oil, and balsamic vinegar.
- Assemble the Crostini: Top each baguette slice with the mushroom mixture, drizzle with dressing, season, and garnish with thyme.
Notes
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Category: Appetizer
- Method: Baking and Sautéing
- Cuisine: Vegan
Nutrition
- Serving Size: 1 crostini
- Calories: 200
- Sugar: 3 g
- Sodium: 300 mg
- Fat: 8 g
- Saturated Fat: 1 g
- Unsaturated Fat: 7 g
- Trans Fat: 0 g
- Carbohydrates: 30 g
- Fiber: 2 g
- Protein: 4 g
- Cholesterol: 0 mg
