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Grilled Mushroom Tacos with Chimichurri

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Taco Tuesday has never been better – these Grilled Mushroom Tacos with Chimichurri are the ultimate plant-based tacos for grilling season! Satisfyingly meaty portobello mushroom caps are grilled until beautifully charred & tender. Slice ’em thin, stuff 'em in tortillas, & finish 'em with a generous drizzle of zippy & herbaceous chimichurri sauce. These grilled portobello mushroom tacos are pure summertime magic – the BEST quick & easy 30-minute dinner for any night of the week!

Naturally vegetarian, vegan, & dairy-free.

Three grilled portobello mushroom tacos on corn tortillas, topped with chimichurri sauce, crumbled cheese, and fresh cilantro, served with lime wedges and a small bowl of chimichurri on a patterned plate.
Photography by Gayle McLeod

Grilled Mushroom Tacos Are a Vegan Delight for Grilling Season!

Of all the grilling recipes we share here on PWWB, feel-good vegetarian grilled recipes are often my personal favorites. I am completely obsessed with grilled veggies!

And these Grilled Portobello Mushroom Tacos are no exception. They’re a riff on one of our favorite summer dinners here at the PWWB House, chimichurri steak tacos, a meal we honestly enjoy several times a month throughout the season. I recently felt inspired to give it a plant-based twist, so I swapped out the steak with meaty mushrooms, and was astounded by the result – these grilled mushroom tacos are so damn good!

Mushrooms are so absorptive that they take on a mind-blowing amount of rich smoky charred flavor from the grill. The end result is kind of a mind-bending experience – they have all the rich and smoky flavor and seriously meaty texture you’d expect in a grilled steak, but there’s no meat involved! 🙌🏼

Slice the grilled mushrooms thin, similar to grilled steak, then squeeze a little fresh lime juice over top for the perfect satisfying bite. From there, simply tuck them into corn tortillas, top with zippy and bright chimichurri sauce, and you’ll have yourself a platter of plant-based tacos that are next-level good!

Grilled portobello mushroom tacos topped with chopped herbs, crumbled cheese, and green salsa, served on corn tortillas with lime wedges on the side.
You need just 30 minutes and 3 simple ingredients to make the base for these vegan tacos.

Key Ingredients

You don’t need much to make this killer grilled mushroom taco recipe. Here’s what you’ll need!

A tray of large portobello mushrooms with a bowl of marinade, surrounded by lime wedges, chopped herbs, tortillas, salt, pepper, and a dish with creamy sauce on a light blue table.
You only need 4 ingredients for the best mushroom taco filling: portobello mushroom caps, avocado oil, fresh lime juice, and a zippy chimichurri sauce.

When it comes to grilling mushrooms, I usually reach for big portobello caps or sizeable shiitakes. They are perfect to place right on top of your grill’s grates – no grill basket or skewers needed!

Tip! ⇢ Mushrooms lose up to 50% of their size as they cook due to moisture loss, so different mushrooms need different treatments on the grill. Larger varieties naturally take longer to cook than smaller ones. Unfortunately, there’s no one-size-fits-all definition of how long to grill mushrooms. For a full guide, be sure to check out How to Grill Mushrooms.

How To Grill Portobello Mushrooms Perfectly — Every Single Time!

If you’ve ever wondered how to grill a portobello mushroom, you’re in the right place! They couldn’t be easier to make and they’re perfect for grilled mushroom tacos. Here’s how it’s done.

1

Grill prep. Preheat a grill for medium-high direct heat grilling, about 450-500 degrees F. Once preheated, be sure to clean the cooking surface by firmly brushing a wire brush over the grates. (If you do not have access to an outdoor grill, you can also preheat a grill pan over medium-high heat!)

2

Prep the portobello mushroom caps. Brush the entire surface of the mushroom caps with just enough oil to nicely coat both sides, then generously season with salt and ground black pepper. Be sure to wait to prep the mushrooms until just before you are ready to grill!

A baking tray with several large portobello mushrooms—some cap-side up, some gill-side up—awaits preparation for mushroom tacos. A basting brush lightly coated with oil rests on one cap, while a bowl sits to the side.
Since mushrooms are so absorptive, it’s best to oil and season them just prior to grilling to avoid soggy mushrooms. It’s best to use a brush (or your hands) to coat the mushrooms evenly with oil rather than drizzling oil over top.
3

Grill the portobello mushroom caps. Grill the mushrooms 4-5 minutes per side, until they are as tender and charred as desired – simple as that!

Portobello mushroom caps rest atop gas grill grates.
Grilled mushrooms are perfectly charred, with a meaty texture that’s absolutely perfect for plant-based tacos!
Grilled portobello mushrooms, whole and sliced, are arranged in a white enamel tray with lime wedges. A large knife rests beside them. Fresh herbs, spices, and cutting boards are seen in the background.
Squeeze fresh lime juice over the grilled mushrooms for the perfect finishing touch before assembly.

Every Taco Needs a Sauce!

Made with just 5 fresh ingredients and a handful of pantry staples, you can whip up a batch of this gorgeous green spread to zhuzh up everything from steak kebabs and veggie platters to these delicious vegan mushroom tacos! In the summer months, I keep a jar of my easy chimichurri sauce in the fridge at all times because it’s so dang delicious. It’s also really simple to make!

I usually prep my chimichurri while the grill preheats, and set it aside until I’m ready to serve.

Easy Chimichurri sauce recipe ingredients fill up a food processor bowl: cilantro, parsley, oregano, garlic, lemon juice & zest, olive oil, red wine vinegar, crushed red pepper flakes, and kosher salt. The food processor bowl rests atop a white marble surface with a wooden pinch bowl filled with kosher salt, a small ceramic bowl filled with ground black pepper, discarded lemon halves, loose fresh oregano and parsley, and garlic cloves.
Simply add fresh cilantro, parsley, and oregano, the juice and zest of a lemon, a few cloves of garlic, olive oil, red wine vinegar, and crushed red pepper flakes to a blender or food processor with a little salt and ground black pepper.
A top down photo of easy Chimichurri sauce that has been pulsed in a food processor bowl. The bowl sits atop a white marble surface. The food processor bowl rests atop a white marble surface with a wooden pinch bowl filled with kosher salt, a small ceramic bowl filled with ground black pepper, discarded lemon halves, loose fresh oregano and parsley, and garlic cloves.
Pulse to combine and voila! A beautiful chimichurri sauce you’ll want to put on everything! 😋

Turning Grilled Mushrooms into Delicious Tacos

Thinly slice the grilled mushroom caps, then squeeze lime juice over top. From there, build your grilled mushroom tacos! Pile the sliced grilled mushrooms on a tortilla, spoon the prepared chimichurri sauce over top, then finish with your toppings of choice.

A plate of grilled mushroom tacos topped with herbs, cheese, and sauce, served with lime wedges. Surrounding the plate are tortilla chips, pickled onions, salsa, radishes, and drinks on a wooden board.
Serve mushroom tacos with queso fresco, thinly sliced radishes, pickled red onions, smashed avocado or guacamole, finely chopped cilantro, fresh lime juice…whatever your taco-lovin’ heart desires!
Three grilled portobello mushroom tacos topped with chopped cilantro, crumbled cheese, and a green sauce, served on a plate with lime wedges and a bowl of extra sauce on the side.
Grilled mushroom tacos are go-to meal at our house, and I’m pretty sure you’re going to be obsessed with them, too!

I can’t wait for you to try these Grilled Mushroom Tacos with Chimichurri Sauce! If you do, be sure to let me know! Leave a comment with a star rating below. You can also snap a photo and tag @playswellwithbutter on Instagram. I LOVE hearing about and seeing your PWWB creations! ♡ Happy cooking!

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Grilled Mushroom Tacos with Chimichurri

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 2 reviews
  • Author: Jess Larson
  • Prep Time: 20 minutes
  • Cook Time: 10 minutes
  • Total Time: 30 minutes
  • Yield: serves 4
  • Category: Tacos, Burritos & Enchiladas Recipes
  • Method: Grilling & Smoking
  • Cuisine: American, Mexican & Tex-Mex
  • Diet: Vegan

Description

Taco Tuesday has never been better – these Grilled Mushroom Tacos with Chimichurri are the ultimate plant-based tacos for grilling season!

Satisfyingly meaty portobello mushroom caps are grilled until beautifully charred and tender. Slice ’em thin, stuff ’em in tortillas, and finish ’em with a generous drizzle of zippy and herbaceous chimichurri sauce.

These grilled portobello mushroom tacos are pure summertime magic – the BEST quick and easy 30-minute dinner for any night of the week!

Naturally vegetarian, vegan, and dairy-free.


Ingredients

Scale
  • 68 portobello mushroom caps, wiped clean and ends trimmed
  • 34 tablespoons avocado oil or neutral high smoke point oil of choice
  • 1 lime, juiced
  • chimichurri sauce
  • kosher salt and ground black pepper, to season
  • for serving, as desired: corn tortillas, smashed avocado or guacamole, queso fresco or cheese of choice, thinly sliced radish, finely diced red onions or pickled red onions, freshly chopped cilantro, lime wedges, etc.


Instructions

  1. Prepare the grill: Preheat the grill for medium-high direct heat grilling, 450-500 degrees F. Once preheated, clean the cooking surface by firmly brushing a wire brush over the grates. (If you do not have access to an outdoor grill, you can also preheat a grill pan over medium-high heat.)Weber Genesis II Propane Grill on a deck.
  2. Prep the chimichurri sauce: Meanwhile, as the grill preheats, prep the chimichurri sauce. Add all listed ingredients to a food processor. Season with 1/2 teaspoon kosher salt and ground black pepper as desired. Pulse to combine. Taste and season with additional salt or ground black pepper as needed. Set aside for serving, or store in an airtight container in the refrigerator for up to 1 week.
  3. Prep the portobello mushroom caps: Place the portobello mushroom caps on a small baking sheet or large plate. Because mushrooms are so absorptive, it’s best to prep them right before grilling. Similarly, rather than drizzling the oil over top, it’s best to use a brush (or your hands) to coat the mushrooms evenly. Brush the entire surface of the mushroom caps with avocado oil, enough to nicely coat both sides of the mushrooms, then season generously with about 1 1/2 teaspoons kosher salt and ground black pepper as desired. Portobello mushroom caps are arranged atop a black baking sheet. A small pastry brush that has been dipped in avocado oil rests atop the mushroom caps.
  4. Grill the portobello mushroom caps: Place the portobello mushroom caps on the grill grates. Close the grill lid and grill the mushrooms 4-5 minutes per side, until they are as tender and charred as desired. Transfer to a small baking sheet or plate. Grilled portobello mushroom caps arranged on a baking sheet with spent lime halves. The baking sheet sits atop a white and gray surface. A small wooden pinch bowl filled with kosher salt, a small ceramic bowl filled with lime wedges, corn tortillas, loose cilantro, and a small ceramic bowl filled with chimichurri sauce surrounds the baking sheet.
  5. Assemble and serve: Thinly slice the grilled mushroom caps, then squeeze lime juice over top. From there, build your grilled mushroom tacos! Pile the sliced grilled mushrooms on a tortilla, spoon the prepared chimichurri sauce over top, then finish with your toppings of choice – queso fresco, thinly sliced radishes, pickled red onions, smashed avocado or guacamole, finely chopped cilantro, fresh lime juice…whatever your taco-lovin’ heart desires. Enjoy!


Notes

  • Mushrooms: If you cannot find whole portobello mushroom caps at your grocery store, you can also make these grilled mushroom tacos with smaller mushrooms, such as white button mushrooms or cremini mushrooms (baby bellas). Rather than grilling whole, slice the smaller mushrooms in half lengthwise, then string them on a skewer. From there, prep & grill according to Steps 3-4 of Recipe Directions, above. Learn more about How to Grill Mushrooms.
  • Storage and Reheating: Leftover grilled mushrooms will keep, stored in an airtight container in the refrigerator, for up to 5 days. Reheat on the stovetop or in the microwave until warmed through. Leftover chimichurri will keep, stored in an airtight container in the refrigerator, for up to 1 week.
  • 10-Minute Meal Prep: These grilled mushroom tacos come together really quickly with very little prep work required, but you can eliminate almost all active prep work at dinnertime by prepping the chimichurri and any other taco toppings in advance:
    • Prep the chimichurri sauce according to Step 2 of Recipe Directions. Store in an airtight container in the refrigerator for up to 1 week. (10 minutes active prep)
    • Prep taco toppings. Prep a batch of quick pickled red onions or whatever taco night fixings you love most! (Active prep time varies)

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Hi there, I'm Jess!

If there’s 1 thing to know about me, it’s this: I am head-over-heels in love with food. I’m on a mission to make weeknight cooking flavorful, fast, & fun for other foodies, & PWWB is where I share foolproof recipes that deliver major flavor with minimal effort. Other true loves: pretty shoes, puppies, Grey’s Anatomy, & my cozy kitchen in Minneapolis, MN.

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Comments

  1. 8.2.22
    Ariella said:

    I was feeling a little extra lazy after I made myself some tortillas so I used a storebought chimichurri from Trader Joe’s and these were still awesome and so quick. Perfect weeknight meal

  2. 6.3.22
    Ariella said:

    These were so quick to make and SO fresh tasting and delicious. Made them with some fresh tortillas and all of the toppings and would make them for any summertime guests, meat eaters or not!

  3. 5.27.22
    Jeanna said:

    I cannot stress how easy, quick, and delicious this recipe is! The grilled mushrooms are so simple and tasty but the chimichurri is truly perfect and I could eat it with a spoon!!

    • 5.30.22
      Erin @ Plays Well With Butter said:

      Hi Jeanna! Thanks so much for dropping a comment, we are SO glad to hear that you loved these tacos as much as we do!