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    Hummusapien » Recipes » Lunch and Dinner » Crazy Flavorful Portobello Fajitas
    ★★★★★ from 9 reviews

    Crazy Flavorful Portobello Fajitas

    Published Sep 5, 2023 · Modified Sep 5, 2023 · by Alexis Joseph · 19 Comments

    Jump to Recipe

    Crazy flavorful Portobello Fajitas packed with veggies and all the fixings for the perfect healthy weeknight meal the whole family will love. Everyone loves these easy fajitas, and they're on the table in 35 minutes. Serve with guacamole, salsa and cheese. A party in your mouth!

    wood cutting board with three veggie fajitas and toppings

    I've always been a huge fajita gal. My mom made them for dinner all the time! Kinda like my chickpea tacos, shrimp tacos, and pineapple salsa...a true fiesta!

    I have vivid memories from growing up of going to the local Mexican restaurant with the fam and ordering those skillet fajitas that come out all sizzling and magical.

    And then if you were lucky enough to be there on your birthday like I was, the team members would serenade you in their sweet sombreros whilst shaking maracas in your face and serving flan.

    Ingredients

    bowls of ingredients for fajitas
    • Portobellos: Yummy meaty flavor for the star of our fajita show.
    • Peppers and onion: Colorful bell peppers to add flavor and texture. You can use a mix of whatever colors you want.
    • Spices: A zesty mix of oregano, chili powder, garlic powder, and cumin for mega flavor. So much better than taco seasoning!
    • Lime: Fresh lime juice to brighten up the flavors.
    • Tortillas: I love corn but use whatever you like!

    See recipe card below for full ingredient list.

    How to make

    1. Slice all your veggies and place in a large mixing bowl. Stir together chili powder, salt, oregano, garlic powder, cumin, red pepper flakes and pepper in a small bowl. Add lime juice, 1 tbsp of oil, and spices to vegetables and toss well with tongs.
    2. Heat a large oiled skillet over medium high heat. Once hot, cook vegetables for about 10 minutes, stirring as needed.
    3. Warm tortillas. Divide veggies between tortillas and top with toppings. Dig in!
    skillet with peppers, mushrooms and lime

    Substitutions and dietary preferences

    These veggie fajitas are already vegan, gluten free, and nut free!

    • Mushrooms: Don't have portobellos? Use whatever mushrooms you love!
    • Add zucchini for extra veggies
    • High protein: Add grilled chicken or shrimp like my husband does.

    The best fajita toppings

    Ok ok ok. The fun is definitely in the toppings, so I'll give you the 411 on my favorites, in addition to the obvious cilantro and lime wedge combo.

    • Guacamole: The salty, limey creamy notes just make the fajitas. This guac recipe is my absolute favorite. (Sometimes I use bottled lime juice, shhhh.) The coriander makes this guac unforgettable.
    • Salsa: I like the medium chunky kind. Frog Ranch is a good local brand.
    • Cheese: Shredded cheddar or monterey jack is the move. Not the kind that's pre-shredded. Go the extra mile and grate a block of Tillamook extra sharp cheddar and I swear you won't be sorry.
    • Hot sauce: I love Frank's or Tabasco Chipotle. Spice it up!
    • Tortilla chips: Ok these are more on the side, but soooo good for crunch. We love the blue corn ones!
    • Shredded lettuce: We pretty much always have a salad on the side with dinner but I love me some crisp shredded lettuce.
    two fajitas in bowl

    Different ways to cook fajitas

    1. In the skillet: I like making these in my biggest cast iron skillet because it really gets a nice char on the veggies. Char equals flavor! They also get softer this way.
    2. In the oven: I'd say this is the cleaner version since you can just toss the parchment paper versus washing a pan. This method takes more time, but it's also hands off. The downside is I find they don't get as soft and charred. But still a good option!
    3. On the grill: We can't wait to throw make these on the grill! The flavor will be amazing.

    How to keep guacamole green

    The best tip I ever learned was using an onion.

    1. Simply slice off a hunk of onion horizontally so you have a big flat piece that can cover the exposed part.
    2. Place leftover guacamole in a storage container and top with onion so as little guacamole as possible is exposed.
    3. Then put the lid on and voila, green guac for days! Remove the onion before serving. I like to brighten up older guac with a squeeze of fresh lime juice.

    Storage tips

    Store leftovers in the fridge for up to 4 days. Store all the veggie and topping components separately and simply reheat tortillas when you're ready to eat.

    bowl of fajitas with toppings

    Please let me know if you love these fajitas by leaving a star rating and/or comment! I hope you adore them as much as I do!

    Print
    clockclock iconcutlerycutlery iconflagflag iconfolderfolder iconinstagraminstagram iconpinterestpinterest iconfacebookfacebook iconprintprint iconsquaressquares iconheartheart iconheart solidheart solid icon
    wood cutting board with three veggie fajitas and toppings

    Crazy Flavorful Portobello Fajitas

    ★★★★★ 5 from 9 reviews
    • Author: Alexis Joseph
    • Prep Time: 20 minutes
    • Cook Time: 15 minutes
    • Total Time: 35 minutes
    • Yield: 4 servings 1x
    • Category: Main Meals
    • Method: Stovetop
    • Cuisine: Mexican
    • Diet: Vegan
    Print Recipe
    Pin Recipe

    Description

    Flavorful Portobello Fajitas packed with veggies for the perfect healthy weeknight meal the whole family will love. Serve with guacamole, salsa, cheese and crunchy tortilla chips!


    Ingredients

    Scale

    For the vegetables:

    • 3 bell peppers, sliced
    • 1 medium onion, sliced (reserve the other half for keeping guacamole green!*)
    • 2 large portobello mushrooms, de-stemmed and gills removed (6oz)
    • 2 tsp mild chili powder
    • 1 tsp kosher salt
    • 1 tsp oregano
    • ½ tsp garlic powder
    • 1 tsp cumin
    • ½ tsp red pepper flakes (optional)
    • Freshly ground black pepper
    • 1 lime, juiced (2 tbsp)
    • 2 tbsp avocado oil, plus more for cooking

    For assembly + topping ideas:

    • small corn or flour tortillas
    • toppings: guacamole, pineapple salsa, freshly grated cheddar cheese, hot sauce

    Instructions

    1. Place sliced peppers, onions, and portobellos in a large mixing bowl. Add chili powder, salt, oregano, garlic powder, cumin, red pepper flakes and several grinds of black pepper to a small bowl. Stir to combine. Add lime juice, 1 tbsp of oil, and spices to vegetables and toss well with tongs to evenly coat.
    2. Heat a large skillet (I like cast iron) over medium high heat. Add a drizzle of oil. Once hot, add vegetables. Cook for about 10 minutes, stirring as needed but letting them sit on pan for a couple minutes at a time without stirring for a nice char. (Alternatively, you can cook veggies on a large baking sheet at 425F for about 35 minutes, stirring halfway.)
    3. Warm tortillas either in the microwave or on the stove. Divide veggies between tortillas and top with your favorite toppings. My go-to is guacamole, salsa, cheddar cheese, and hot sauce. Crunchy tortilla chips on the side or refried beans for extra protein are also great!

    Notes

    • If you made guacamole, place leftovers in a small container and top with a thick round of raw onion. Anything under the onion will stay green!
    • My husband loves these with chicken or shrimp. We double the spice mixture and marinate 1 lb chicken or shrimp with the same spices, lime juice, and oil as the veggies.

    Did you make this recipe?

    Tag @hummusapien on Instagram. I love sharing what you make!

    Photos by The Nutritious Kitchen.

    About Alexis Joseph


    Oh HEY there! I'm Alexis Joseph, food writer, blogger, Registered Dietitian Nutritionist (RDN), new mama, and co-founder of local restaurant group, Alchemy. I use my passion for cooking and wellness as fuel to help others ignite a more freeing and happy relationship with food. Learn more about Alexis!

    5 Secrets to Delish, Healthy Lunches

    Reader Interactions

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    1. Ann says

      September 12, 2023 at 11:15 pm

      Thank you for another delicious, nutritious, simple recipe! We had it tonight with Mexican rice. (chef's kiss*)

      ★★★★★

      Reply
      • Alexis Joseph says

        September 13, 2023 at 1:58 am

        Wonderful, I’m so glad to hear! Thanks Ann!!

        Reply
    2. Val says

      September 05, 2023 at 10:37 pm

      We made this for dinner last night and OMG it was insane! It's the first recipe in years that we were both still talking about the day after AND that we fought over leftovers for LOL. So incredibly flavorful and it literally took 2 mins to prepare! We followed it to a t, with store bought guac and salsa. Bill didn't miss meat at all - this is so satisfying as is!

      I love so much all of the thought and consideration you put in to recipe development. Each recipe you create is so versatile - just like every other recipe on your site, this one is easy to prepare no matter what ingredients your readers have on hand, or what form of cooking they have access to. The best part of it all is, that no matter what, it ends up being a success each time! Loved this one and it's our new go-to for fajitas! (aka it's now a weekly meal lol)

      ★★★★★

      Reply
      • Alexis Joseph says

        September 06, 2023 at 12:35 pm

        You're the best, Val! I can't tell you how much your thoughtful comments mean to me. Store bought guac and salsa for the win. And heck yes for new weekly meal ideas! Love you girl 🙂

        Reply
    3. Maureen says

      February 16, 2022 at 8:46 pm

      Love, love, LOVE this recipe. I doubled it and have been eating SO GOOD the past couple of days. The lime juice gives the veggies a great kick/taste. I'm already looking forward to making these again.

      ★★★★★

      Reply
      • Alexis Joseph says

        February 17, 2022 at 9:47 pm

        Yayyy thank you tons, Maureen! This is one of our go-to dinners 🙂

        Reply
    4. Elle says

      October 21, 2021 at 1:20 pm

      Looks so yummy making next week!!

      Reply
    5. Rachael says

      August 31, 2021 at 1:52 am

      I’ve made this recipe several times now. I love it! So simple I don’t know why I never thought of it before but it’s going to be a regular for us.

      ★★★★★

      Reply
      • Alexis says

        August 31, 2021 at 3:40 pm

        YESSSS love it, Rachael!

        Reply
    6. Brea says

      May 26, 2021 at 3:09 am

      Wow- Yummy! these were a simple and delicious hit. I expect they'll be in our rotation.

      ★★★★★

      Reply
      • Alexis says

        May 27, 2021 at 11:40 pm

        I'm so glad! Thanks a ton for letting me know you loved these, Brea.

        Reply
    7. Aimee says

      May 18, 2021 at 10:50 pm

      Delicious!! We built our tacos on flour tortillas with refried beans, the amazing fajita mixture, and topped with salsa. We will be making these again soon. Thank you for the yummy recipe!

      ★★★★★

      Reply
      • Alexis says

        May 19, 2021 at 11:32 am

        Sounds so yummy!!

        Reply
    8. Claudine Seguin says

      May 17, 2021 at 5:24 pm

      Delicious 😋
      Made this and my 5 yo loved the portobello mushrooms. Thanks for the great recipe - once again!

      ★★★★★

      Reply
      • Alexis says

        May 17, 2021 at 8:09 pm

        Yayyy thanks so much for letting me know you loved the fajitas, Claudine!

        Reply
    9. Anna says

      March 22, 2021 at 4:30 am

      Delicious with all the toppings!! My whole fam loved

      ★★★★★

      Reply
      • Alexis Joseph says

        March 22, 2021 at 6:42 pm

        Yayyyy thank you a ton, Anna!

        Reply
    10. Dylan says

      March 15, 2021 at 12:29 pm

      These are a staple for us! Such a fun, and quick, meal! Love the idea of grilling the veggies too!

      ★★★★★

      Reply
      • Alexis Joseph says

        March 15, 2021 at 6:41 pm

        Thanks so much, Dylan!!

        Reply

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    Well HELLO there! I'm Alexis Joseph, a registered dietitian, restaurateur and mama. Welcome to Hummusapien, a healthy food blog brimming with nourishing (always delish!) recipes plus inspiration to help you live your most joyful, balanced life. Grab a super hot cup o' joe and let's get cooking.

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