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Grilled Portobello Mushroom Fajitas

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Grilled Portobellow Mushroom Fajitas LW

Grilled Portobello Mushroom Fajitas

Jessica Braider
Portobello mushrooms are a meaty vegetable, and just like beef or chicken, they take well to marinades and grilling. If you don’t want to grill, these would be equally good cooked in a cast iron skillet.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 1 hour 45 minutes
Course Main Dish
Cuisine Mexican, Tex Mex
Servings 6 servings


  • 6 oz. portobello mushroom caps, sliced, or use ¾ - 1 lb. boneless, skinless chicken breasts
  • 1 large yellow onion halved top to bottom and thinly sliced
  • 2 green peppers thinly sliced
  • ¼ cup extra virgin olive oil
  • 1/8 cup balsamic vinegar
  • 1 Tbsp. chili powder
  • ½ tsp. salt
  • 1 ½ tsp. minced garlic 2 – 3 cloves
  • 6 medium whole wheat or flour tortillas (use wheat/gluten-free, if needed)
  • ½ cup crumbled feta or goat cheese
  • ¾ cup sour cream for serving (optional)
  • ¾ cup chunky salsa for serving (optional)


  • Put the mushrooms, onions and peppers in a large resealable bag. Combine the oil, vinegar, chili powder, salt and garlic, and add it to the bag with the mushrooms. Massage the vegetables gently to coat well with the marinade. Refrigerate for at least 30 minutes and up to 48 hours.
  • Preheat the grill to medium-high heat. Spray a vegetable grilling tray or a piece of foil with nonstick cooking spray, or brush it with a little vegetable oil, and heat it on the grill. Drain the vegetables in a colander, then transfer them to the grilling tray. Grill them with the cover closed for about 15 minutes, flipping them once, until they are tender and partially browned but not charred.
  • Heat the tortillas in the microwave for 30 seconds to 1 minute so they are soft and warm. Lay about ½ cup of the vegetable filling on the center of each tortilla, top it with about 2 tsp. cheese, and about 1 Tbsp. each sour cream and salsa, if desired. Fold the bottoms up and the sides in and serve them immediately.


Like this recipe? Check out The Scramble's family-friendly meal plans to see just how simple getting dinner on the table can be!
Keyword Dairy-Free, Dinner, Gluten-Free, Grilling, Kid-Friendly, Kosher, Main Dish, Nut-Free, Vegetarian
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Recipe Rating

The Knives you Need to Make Chopping and Food Prep Easy

Thursday 29th of October 2020

[…] is a great knife for slicing slippery items like peppers and tomatoes, which are delicious in this fajita recipe. I really like this one (affilaite) and use it almost daily in my own […]

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