Home » Recipes » Diet » Vegetarian » Grilled Portobello Burgers with Balsamic Reduction

Grilled Portobello Burgers with Balsamic Reduction

Grilled Portobello Burger with cheese, red pepper and sprouts on a bun
WANT TO SAVE THIS RECIPE?
Enter your email & we'll send it to your inbox. Plus get great new recipes every week!
Please enable JavaScript in your browser to complete this form.

These hearty Grilled Portobello Burgers with Balsamic Reduction feature crunchy grilled sourdough bread, gooey cheese and fresh vegetables. They’re delicious!

Hearty Vegetarian Portobello Burgers

Over the past 3 days I have accumulated a few … should we say “skills.”

Namely, the skills of being an “expert fly killer”… except in this house we say “fly getter” instead of killer because I have a two year old who I don’t want repeating the word.

Grilled Portobello Burger with cheese, red pepper and sprouts on a bun

These skills did not come naturally to me, in fact I have spent hours upon hours trying to master these skills to get the 5-10  flies that are in our house!! And let me tell you, those buzzing things can make a person go crazy. Its like they know exactly what will irritate a person. They buzz right by your head and then disappear without a trace, oh… but then they are sure to reappear so they can continue to land in the same spot on your leg 10 times!!! Annoying!

Grilled Portobello Burgers with cheese, red pepper and sprouts on toasted bread

Even my poor son walks around with a wadded magazine saying “get’em mommy… fly in da house… get’em”. Clearly these flies have affected our family…. for the I’m-about-to-have-a-breakdown-if-I-hear-another-buzz-near-my-ear.

These Grilled Portobello Burgers have affected our family as well and for the better because holy moly are they good!

Grilled Portobello Burgers being drizzled with Balsamic Reduction

I made these thinking… {what follows is the conversation I had in my head before making these}

“Well.. I really want a burger right now… but want it to be different”

“I like Portobello’s… maybe I’ll try that, sweet their on sale!”

Grilled Portobello Burgers with Balsamic Reduction, red pepper, and sprouts on toasted bread

“Its definitely not gonna be quite as good as a burger, I hope Mike likes it.”

“Oh… maybe I’ll add balsamic reduction to it… wait… I add balsamic reduction to everything.”

“Who cares Balsamic Reduction rocks and makes everything better… and so does the grill!”

{takes a bite after making it} “OHHHHH MMMMMMYYYYYY GOOOOSSSSHHH! Best call ever!!! Who needs meat? Can I leave the dinner table to be alone with this burger in the closet so I don’t have to share!”

Grilled Portobello Burgers with Balsamic Reduction, red pepper, and sprouts on toasted bread

So as you can see, this Portobello Burger was aa-mazing! {emphasis on the “aa”}

I am such a texture person when I eat I need to have a little of everything or I don’t like it, this burger has all kinds of textures to it as well as all kinds of flavors… sweet, salty, tangy, creamy, earthly.

Ok, enough.. go get the ingredients and make it. You will not regret it!

Grilled Portobello Burgers with Balsamic Reduction, red pepper, and sprouts on toasted bread

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Grilled Portobello Burger with Balsamic Reduction

Grilled Portobello Burgers

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 1 review
  • Author: Krista
  • Prep Time: 35 minutes
  • Cook Time: 10 minutes
  • Total Time: 45 minutes
  • Yield: 4 burgers 1x
  • Category: Vegetarian
  • Method: Grill
  • Cuisine: Vegetarian

Description

These hearty Grilled Portobello Burgers  feature crunchy grilled sourdough bread, gooey cheese and fresh vegetables. They’re delicious!


Ingredients

Scale

Marinated Mushrooms:

  • 4 large portobello mushrooms
  • 2 tablespoons balsamic vinegar
  • 2 tablespoons olive oil
  • 1 tablespoon dijon mustard
  • 1/4 teaspooon rosemary
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon salt

Truffle Aioli:

  • 1/2 cup mayonaisse
  • 2 garlic cloves, minced
  • 1 tablespoon lemon juice
  • 1/2 tablespoon truffle oil
  • 1/8 teaspoon truffle salt

Burger:

  • 4 brioche buns
  • 4 slices of provolone cheese
  • 1 large roasted red pepper, julienned
  • 1 cup of microgreens

Instructions

  1. Marinate Mushrooms: To a small bowl add balsamic, olive oil, dijon mustard, rosemary, pepper and salt. Whisk together until combined. Add mushrooms to a large baking dish, pour the marinade over the mushrooms. Gently rub the marinade into all sides of the mushrooms. Let marinate for 30 minutes.
  2. Make Truffle Aioli: To a small bowl, add mayonaisse, garlic, lemon juice, truffle oil and truffle salt. Whisk together until combined. Set aside.
  3. Grill Mushrooms: Heat grill to medium-high heat, approximately 375°-400°F. Add mushrooms to the grill, cap side down. Grill for 4-5 minutes. Flip and grill for 4 minutes. Then add a slice of cheese to each mushroom and let them cook for 1 minute, or until cheese is melted. Remove from grill. (optional: top the buns on the grill as well – grill each side for 1 minute)
  4. Assemble Sandwiches: To the bottom bun add 1 tablespoon of aioli, place the mushroom on top, then a handful of mircrogreens, a few slices of roasted red pepper then the top bun. Serve.

Filed Under:

Review and rate this recipe!

I love hearing from you! Submit your question or review here. Your email address will not be published. Required fields are marked*.

Rate This Recipe! 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

10 comments on “Grilled Portobello Burgers with Balsamic Reduction”

  1. This recipe is sooooo for me because I L-O-V-E mushrooms so much… I pinned!!! 🙂
    XoXoX Crystelle

  2. Avatar photo
    Mike@TheIronYou

    Hahahahaha “Fly Getter” is epic.
    I can totally picture you meeting a friend on the street and when asked “What did you do today?” you answer “You know, usual stuff, getting flies…” 😀

    BTW those burgers look the bomb, loving the balsamic reduction!

    1. Oh.. I wish you could have seen what went down yesterday night in our house. Mike and I AND cason were having a contest to see who could “get” the most flies. It is seriously unreal how many were in our house… i promise I clean!! 🙂 haha

      Glad you liked those burgers.. the balsamic is seriously da bomb.com!

  3. Avatar photo
    Chris @ Shared Appetite

    Loving these burgers! And good call on the balsamic reduction! Who cares if you add it to everything… it’s good!!! And such beautiful photos in this post. Love them Krista!!

    1. Oh… coming from the burger king… ahemm… you.. thanks means alot! Thanks on the photo props Chris!

  4. Avatar photo
    Sarah@WholeAndHeavenlyOven

    Oh, man. It’s not even 8am and I am CRAVING this gorgeous sandwich for a 2nd breakfast. Seriously, Krista you are SO creative when it comes to anything grilled. I need 5 of these burgers in front of me. STAT. I love your photos too! The lighting is perfect and you had a super-delish subject! 😀 Pinned!

    1. Thanks Sarah, you are seriously so sweet and always make my day! Thank you so much! They are definitely amazing, hope you get a chance to try them. 🙂