Roasted Mushroom Sandwich with Horseradish Aioli

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The Mushroom Sandwich That I Can’t Quit

Do I always talk about Ang or do I always talk about Ang? Really, all my favorite food ideas come from Ang. Texas style chili, chicken wraps, and the famous tortellini soup. I got a text a few weeks ago from Ang with a photo of her sandwich – like friends do – which was layers of roast beef, arugula, havarti, and horseradish aioli on the caramelized onion focaccia from Trader Joe’s. I spent at least 10 minutes just zoomed in on the photo, examining every saucy detail. Then I went and immediately made one for myself.I was feeling called to a no-beef-but-still-beefy mushroom version, and it is beyond. That horseradish aioli is pulled from the old fave portobello French dip recipe (5 star, so good), and the roasty mushrooms, havarti, and arugula create layers of flavor that were just meant to be together. It might be over the top, but I also like a shmear of pesto rosso on the bottom of the focaccia so you can get a little tomatoey brightness in the mix. Please go sink your teeth into this smushy, saucy, salty and hefty masterpiece. It is a good one.

How To Make This Mushroom Sandwich

1 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.

2 Make that horseradish sauce.

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

3 Toast and split the bread.

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

4 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.

5 You’re Done! Yum.

Devour and enjoy.

Watch How To Make This Mushroom Sandwich

Roasted Mushroom Sandwich with Horseradish Aioli

5 from 10 reviews

Author: Lindsay Ostrom
Total Time: 40 minutes
Yield: this makes enough mushrooms and sauce for 3-4 sandwiches

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Description

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

Ingredients

Units USM Roasted Mushrooms

16 ounces sliced mushrooms (portobello or white b***on mushrooms)
2 tablespoons avocado oil
2 tablespoons Cajun seasoning (if it has salt in it, you may want to add less of it just to make sure the mushrooms don’t get too salty – every brand is different)
salt and pepper to taste

Horseradish Aioli

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

Sandwiches

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

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Instructions

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.

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

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.

Prep Time: 10 minutes
Cook Time: 30 minutes
Category: Sandwich
Method: No-cook
Cuisine: American

Keywords: mushroom recipe, mushroom sandwich, focaccia sandwich, vegetarian sandwich

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Sun-Dried Tomato Focaccia Sandwich

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The post Roasted Mushroom Sandwich with Horseradish Aioli appeared first on aplhsindia.in.

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Roasted Mushroom Sandwich with Horseradish Aioli

In This Post

The Mushroom Sandwich That I Can’t Quit

How To Make This Mushroom Sandwich

1

Roast the mushrooms.

2

Make that horseradish sauce.

3

Toast and split the bread.

4

Layer your sandwich.

5

You’re Done! Yum.

Watch How To Make This Mushroom Sandwich

Roasted Mushroom Sandwich with Horseradish Aioli

Description

Ingredients

Instructions

Did you make this recipe?

Three More Favorite Handhelds

Sun-Dried Tomato Focaccia Sandwich

Instant Pot Italian Beef Sandwiches

Ginger Chicken Meatball Sandos

I ditched my gaming PC for cloud gaming when hardware prices spiraled out of control

I used an old router as a dedicated smart home network, and it solved two problems at once

Mid-range GPUs have largely dodged the memory crisis, but not for much longer

Windows 95 changed computing forever, and the Virtual OS Museum is the best way to relive it

The first Story-Rich showcase was packed with narrative-driven games

Your mesh nodes are talking over Wi-Fi when they could be wired, and it’s killing your speed

AMD shipped Nvidia’s new AI laptop over a year ago, and the software is finally catching up

GOG apologizes for emailing people Nazi symbols

I ditched Google Maps for an open source alternative that actually delivers

I used Claude Code to build a utility that fetches files by the way I describe it, and it’s better than any file explorer I’ve used

I ran Claude Code and Cursor together, and the combination does something neither can do alone

4 simple ways I optimize Android Auto for long, distraction-free drives

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