Jul 14 2026
RestaurantsThe Fix Burger BarThe Mushroom Recipe

The Mushroom Recipe

Inspired by The Fix Burger Bar
Time30m
Serves2

sautéed mushrooms, grilled onion, arugula, swiss cheese, truffle mayo, brioche roll

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Ingredients

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Mushroom Sandwich Ingredients

Method

Preparation Instructions

  1. 1

    Sauté the Mushrooms

    Heat 1 tablespoon of olive oil in a skillet over medium-high heat. Add the sliced mushrooms, season with salt and pepper, and sauté for about 5-7 minutes until golden brown and tender.

  2. 2

    Grill the Onion

    In the same skillet, add another tablespoon of olive oil. Add the sliced onion and cook for about 5-6 minutes until caramelized and softened.

  3. 3

    Toast the Brioche Rolls

    While the mushrooms and onions are cooking, slice the brioche rolls in half and toast them lightly until golden brown.

  4. 4

    Assemble the Sandwich

    Spread 2 tablespoons of truffle mayo on each toasted brioche half. Layer on the sautéed mushrooms, grilled onions, arugula, and top with a slice of swiss cheese. Close the sandwich with the other half of the brioche roll.

  5. 5

    Serve

    Cut the sandwich in half if desired and serve immediately while warm.

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