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lunch

Roasted Mushroom Sandwich with Horseradish Aioli

4.9

| Published on November 13, 2024

Layers of roasty mushrooms, havarti, lemony arugula, and an easy homemade horseradish aioli make this mushroom sandwich a WINNER. A saucy, salty, hefty masterpiece!

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Roasted Mushroom Sandwich with Horseradish Aioli

Prep Time:

10 mins

Cook Time:

30 mins

Total Time:

40 mins

Servings:

4


Jump to Nutrition Facts

Roast the mushrooms.

Toss the mushrooms with olive oil and a hefty sprinkle of seasoning (I use Cajun seasoning). Roast ’em up till they’re golden, chewy, and delicious.

Hands mixing sliced mushrooms with oil and spices.

Make that horseradish sauce.

Oh man, it’s so good. Mix your mayo, garlic, lemon, and horseradish together. Season with salt.

Mixing aioli in a bowl with mayonnaise, horseradish, garlic, and lemon juice.

Toast and split the bread.

Would highly recommend the caramelized onion focaccia from Trader Joe’s for this one.

Slicing focaccia on a cutting board.

Layer your sandwich.

My layers: pesto rosso (also from Trader Joe’s, and optional), mushrooms, havarti cheese (melted for funs), arugula, and horseradish sauce on top.

Placing arugula on a mushroom sandwich.

You’re Done! Yum.

Devour and enjoy.

Mushroom sandwich cut in half and opened.


Ingredients

sandwiches

  • Pesto rosso (optional as a second sauce)
  • Big honking chunk of bread that you really love (I like Trader Joes caramelized onion focaccia for this)
  • Havarti cheese slices
  • Arugula tossed with olive oil and lemon

roasted mushrooms

  • 16 ounces sliced mushrooms (portobello or white button mushrooms)
  • 2 tablespoons avocado oil
  • salt and pepper to taste
  • 2 tablespoons Cajun seasoning (if it has salt in it, you may want to add less of it just to make sure the mushrooms dont get too salty every brand is different)

horseradish aioli

  • 12 teaspoons lemon juice, to taste
  • 12 teaspoons horseradish sauce, to taste (I use Boars Head)
  • salt, to taste
  • 1/2 cup mayo
  • 1 small clove garlic, grated (even half a clove is plenty)

Directions

Step 1

Roast the mushrooms: Preheat the oven to 450 degrees. Toss the sliced mushrooms with the avocado oil and the seasoning on a sheet pan until well-combined. Roast for 20-25 minutes, until golden brown.

Step 2

Make the horseradish aioli: Mix all the sauce ingredients in a bowl until well-combined. Taste and season.

Step 3

Assemble the sandwiches: Toast the bread for the last few minutes on the pan with the mushrooms. Split the bread, spread with pesto rosso, roasty mushrooms, havarti (pop it in the oven again for a minute if you want it to melt), arugula, and the top piece of bread shmeared with the horseradish sauce. OH MY WORD can you even? This is so good.


Nutrition Facts(per serving)

439

Calories

41g

Fat

10g

Carbs

9g

Protein

Show Full Nutrition Label

Nutrition Facts

Servings per Recipe: 4

Calories: 439


% Daily Value *


Total Fat: 41g

52.6%


Saturated Fat: 13g

65.0%


Cholesterol: 24mg

8.0%


Sodium: 809mg

35.2%


Total Carbohydrate: 10g

3.6%


Dietary Fiber: 2g

7.1%


Total Sugars: 3g

6.0%


Protein: 9g

18.0%


Vitamin C: 4mg

4.4%


Calcium: 0mg

0.0%


Iron: 1mg

5.6%


Potassium : 437mg

9.3%


* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

Keywords:

Lunch recipes, roasted recipe, mushroom recipe, sandwich recipe, horseradish recipe, aioli recipe, Roasted Mushroom Sandwich with Horseradish Aioli recipe

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