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Portobello Mushroom Fajitas [Vegan]

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The marinated portobello mushrooms make these fajitas substantive and flavorful. Cook the peppers and onions until they’re a bit blackened for even more flavor.

Portobello Mushroom Fajitas [Vegan]

This Recipe is :

Dairy Free Vegan





Cook Time



  • 8 six-inch flour tortillas
  • 2 tablespoons plus 1 teaspoon olive oil (separate)
  • 2 tablespoons lime juice
  • 2 garlic cloves, minced
  • ¼ teaspoon crushed red pepper flakes
  • ¼ teaspoon ground cumin
  • 1 tablespoon soy sauce (or Bragg’s liquid aminos)
  • 4 large portobello mushroom caps, sliced ¼-inch thick
  • 1 small yellow onion, sliced
  • 1 medium red bell pepper, sliced
  • 1 medium green bell pepper, sliced
  • ¼ teaspoon salt
  • 8 ounces guacamole
  • Salsa verde and lime wedges for serving
  • Fresh ground pepper to taste


  1. Preheat oven to 300 degrees fahrenheit. Wrap tortillas in foil and place them in the oven to keep warm for serving.
  2. In a large bowl, combine 2 tablespoons olive oil, lime juice, garlic, crushed red pepper flakes, ground cumin and soy sauce. Add sliced portobello mushrooms and toss to combine. Set aside as you prepare the remaining ingredients.
  3. In a large sauce pan, heat remaining teaspoon of olive oil. Add onion and cook 2-3 minutes until soft, stirring occasionally. Add red and green bell peppers, salt and fresh ground pepper to taste. Cook about 10 minutes until peppers are soft. (I like them a bit blackened on the edges). Transfer pepper mixture to a bowl or plate and set aside.
  4. Reheat the same pan where you cooked the peppers, add the portobello mushroom mixture. Cook 7-10 minutes until mushrooms have released their liquid and it has mostly evaporated. Add the pepper mixture back into the pan and cook another 1-2 minutes, stirring frequently.
  5. In each heated tortilla, place approximately 1 tablespoon of guacamole down the center. Add a serving of portobello pepper mixture and top with salsa verde.





Straightforward recipes that help busy people easily incorporate plant-based foods into their lifestyle. Through her website, Prep Green, Sara Hohn offers easy recipes, meal plans and guidance for thriving on a plant-based diet. Balancing work as a chef, recipe developer and user experience designer, Sara knows what it’s like to be pressed for time. Her straightforward recipes help busy people easily incorporate plant-based foods into their lifestyle. When she’s not discovering new ways to simplify meal preparation, she’s trying to conjure more space in her tiny Brooklyn kitchen.



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