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Amberly Vahn

Savory Roasted Mushroom Sandwich with Horseradish Aioli

This Roasted Mushroom Sandwich with Horseradish Aioli is a delightful, savory treat perfect for autumn gatherings.
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Prep Time 10 minutes
Cook Time 25 minutes
Total Time 50 minutes
Servings: 4 sandwiches
Course: Main Course
Cuisine: Vegetarian
Calories: 350
Ingredients Equipment Method Notes

Ingredients
  

Group: Roasted Mushrooms
  • 8 oz. cremini mushrooms, cleaned and stems removed
  • 2 Tbsp. extra-virgin olive oil
  • 1 Tbsp. balsamic vinegar
  • 1 tsp. dried thyme
  • Salt, to taste
  • Freshly cracked black pepper, to taste
Group: Horseradish Aioli
  • 1/2 cup mayonnaise
  • 1 Tbsp. prepared horseradish
  • 1 clove garlic, minced
  • 1 tsp. lemon juice
  • Salt, to taste
Group: For Assembly
  • Your favorite rustic bread (sourdough recommended)
  • Fresh arugula or spinach
  • Optional toppings: sliced avocado, pickled onions, or cheese (like goat cheese or feta)

Equipment

  • Oven
  • Baking sheet
  • Parchment paper
  • Small bowl

Method
 

  1. Preheat your oven to 400°F (200°C).
  2. In a medium bowl, toss the cleaned cremini mushrooms with olive oil, balsamic vinegar, dried thyme, salt, and freshly cracked black pepper.
  3. Spread the mushrooms out in a single layer on a baking sheet lined with parchment paper. Roast them for about 20-25 minutes, flipping halfway through.
  4. In a small bowl, whisk together mayonnaise, prepared horseradish, minced garlic, lemon juice, and a pinch of salt.
  5. Toast the bread slices in the oven or on a skillet until golden and crisp.
  6. Assemble the sandwich by spreading horseradish aioli on toasted bread, adding roasted mushrooms and fresh arugula, and topping with additional ingredients as desired.

Notes

This recipe is a fascinating journey into the wonderful world of flavors and textures! The satisfying crispness of the toasted bread perfectly complements the soft, earthy mushrooms, and that zesty horseradish aioli? It adds just the right punch to make your taste buds dance!