Easy Mushroom Crostini Recipe – Savory Holiday Appetizer
If you’re looking for an easy appetizer that people actually enjoy eating, you can’t go with mushroom crostini. Crisp baguette slices are topped with a rich blend of sautéed mushrooms, onions, and garlic, then finished with melty Gruyere cheese.
Nothing fancy, but it feels special enough for a holiday spread or when you need an easy starter for a dinner party
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This crostini recipe is a reliable go-to, any time I want an appetizer that’s simple, satisfying, and sure to impress. It is a perfect example of how a few simple ingredients can create something elegant and delicious.
How to Make Mushroom Crostini
Here are the ingredients you need to make this mushroom crostini recipe, plus step by step instructions for how to make it.
Ingredients
- ½ loaf baguette
- 1 tbsp olive oil
- 2 tbsp finely chopped onions
- 1 tsp minced garlic
- 4 oz portobello mushrooms, chopped
- 1 – 1 ¼ cup Gruyere cheese, shredded
- Fresh parsley to garnish
Step by Step Instructions
1. Preheat the oven to 350°F and line a baking sheet with parchment paper for easy cleanup.
2. Cut the mushrooms, then chop the onions and parsley, and set aside.
3. Slice the baguette into 25 pieces, about ¼-½ inch thick. Arrange the slices in a single layer on the prepared baking sheet.
4. Heat the olive oil in a skillet over medium-low heat. Add the onions and cook for 2-3 minutes, stirring often until softened. Stir in the garlic and cook for another 30 seconds.
5. Add the chopped mushrooms to the pan and sauté for about 5 minutes, until the liquid has cooked off and the mushrooms are tender.
6. Place a small amount of the Gruyere cheese on each slice of bread, then spoon some of the mushroom mixture on top.
7. Sprinkle with more cheese to cover the mushrooms.
8. Transfer the baking sheet to the oven and bake for 5-6 minutes, or until the cheese is melted and bubbling.
9. Remove from the oven and sprinkle with fresh parsley.
10. Serve warm and enjoy!
These mushroom crostini come together quickly and work for just about any get-together. They’re simple, tasty, and easy to pass around. Next time you need a no-fuss appetizer that everyone can grab and enjoy, this recipe is a good one to keep in mind.
More Fall Appetizers
- Walnut and Cranberry Brie Bites
- Brie and Apple Butter Crostini
- Pumpkin Pie Cheese and Crackers
- Cranberry Turkey Stuffing Balls
- Pumpkin Shaped Cheese Ball
- Pigs in a Blanket
- Muffin Tin Stuffing Bites
Mushroom Crostini
Ingredients
- ½ loaf baguette
- 1 tbsp olive oil
- 2 tbsp finely chopped onions
- 1 tsp minced garlic
- 4 oz portobello mushrooms, chopped
- 1 – 1 ¼ cup Gruyere cheese, shredded
- Fresh parsley to garnish
Instructions
- Preheat the oven to 350°F and line a baking sheet with parchment paper for easy cleanup.
- Cut the mushrooms, then chop the onions and parsley, and set aside.
- Slice the baguette into 25 pieces, about ¼-½ inch thick. Arrange the slices in a single layer on the prepared baking sheet.
- Heat the olive oil in a skillet over medium-low heat. Add the onions and cook for 2-3 minutes, stirring often until softened. Stir in the garlic and cook for another 30 seconds.
- Add the chopped mushrooms to the pan and sauté for about 5 minutes, until the liquid has cooked off and the mushrooms are tender.
- Place a small amount of the Gruyere cheese on each slice of bread, then spoon some of the mushroom mixture on top.
- Sprinkle with more cheese to cover the mushrooms.
- Transfer the baking sheet to the oven and bake for 5-6 minutes, or until the cheese is melted and bubbling.
- Remove from the oven and sprinkle with fresh parsley.
- Serve warm and enjoy!
