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5 from 2 votes

Vegetarian Portobello Mushroom Fajitas

These Vegetarian Portobello Mushroom Fajitas are a healthy 30 minute meal for busy nights. You can even get a head start on this recipe by prepping ahead!
Prep Time22 mins
Cook Time8 mins
Total Time30 mins
Servings: 4 servings
Calories: 398kcal


  • 2 tablespoons olive oil
  • 2 tablespoons lime juice*
  • 2 cloves garlic minced
  • ½ jalapeno ribs and seeds removed, finely chopped
  • ¼ cup chopped cilantro
  • ¼ teaspoon salt
  • 1/8 teaspoon pepper
  • 2 portobello mushrooms
  • 2 bell peppers sliced into strips
  • 1 onion sliced
  • 1 avocado
  • 8 whole grain tortillas
  • for serving: 15 ounce can black beans rinsed and drained


  • Make the marinade: In a large bowl, whisk together olive oil, lime juice, garlic, jalapeno, cilantro, salt and pepper.
  • Wipe the portobellos with a damp towel. Pull out the stem and use a butter knife or spoon to scrape out the gills. Slice into ½-inch thick slices and add to the marinade bowl.
  • Add the sliced bell peppers and onions to the bowl and toss gently with your hands to combine.
  • Heat a large pot over medium-high heat. Pour in the vegetables and marinade. Cook, stirring occasionally, until vegetables are tender, about 8 minutes.
  • Meanwhile, pit and peel the avocado. Smash it in a bowl and mix in a little lime juice and a pinch of salt, if desired.
  • Serve vegetables in warmed tortillas, with smashed avocado and black beans.


*If you have extra lime juice, it's delicious mixed into the smashed avocado.
**Nutrition information will vary by brand of tortilla, etc.


Serving: 2fajitas | Calories: 398kcal | Carbohydrates: 60g | Protein: 10g | Fat: 16g | Saturated Fat: 4g | Sodium: 430mg | Fiber: 12g | Sugar: 9g
Nutrition information is only an estimate.
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