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sauteed mushrooms on a taco with red pepper aioli

Portobello Tacos with Roasted Red Pepper Aioli

  • Author: Sloan
  • Total Time: 20 minutes
  • Yield: 4 servings {2 Tacos Each}


These simple vegan portobello tacos with a roasted red pepper aioli are great for meatless Monday or anytime you need a quick meal because they are ready in under 15 minutes. Paleo and Whole30 cooking instructions included. 


Roasted Red Pepper Aioli

· 2/3 cup Jarred Roasted Red Peppers or 2 large Bell Peppers Roasted - pat dry

· 2 cloves Garlic - Chopped

· 2/3 cup mayonnaise*

· 1/2 - 1 Tablespoon Hot Sauce - Adjusted to your heat preference

· 1/2 Lime - Juiced

· Salt and pepper to taste

Taco Seasoning*

· 1 Tablespoon Chili Powder

· 1 Tablespoon Jalapeno or Cayenne Powder

· 1 Tablespoon Garlic Powder

· 1/2 Tablespoon Cumin

· 1/2 Tablespoon Coriander

· 1/2 Tablespoon Kosher or Sea Salt

· 1/2 Tablespoon Black Pepper

Portobello Tacos

· 1 Tablespoon Oil

· 1/2 Red or White Onion - Sliced

· 3 large Portobello Mushrooms - Sliced

· 1.5 Tablespoons Taco Seasoning

· 8 Tortillas - Warmed

· Roasted Red Pepper Aioli

· Toppings: cabbage, brussels sprouts, onions, peppers, jalapenos, guacamole, etc.

· Garnish: Cilantro and Lime


Roasted Red Pepper Aioli

  1. In a food processor or blender, add the peppers and garlic.
  2. Pulse until the peppers are in small pieces. Add the mayonnaise, hot sauce, and lime and blend until smooth. Taste and season with salt and pepper as needed.  


Taco Seasoning 

  1. Blend all the spices together and store in an airtight jar or container. {Recipe makes more spices than needed for this recipe.} 


Portobello Tacos

  1. Preheat a large skillet over medium heat. Add the oil and onions and cook until soft and translucent – about 5-10 minutes.
  2. Add the sliced mushrooms and cook for another 5 minutes or until the mushrooms are softened but not mushy.
  3. Add the taco seasoning at the last few minutes of cooking and stir to coat mushrooms evenly. 


Serve the mushrooms and onion mixture on warmed tortillas or lettuce wraps with shredded cabbage or brussels sprouts, sliced bell peppers and onion, jalapenos, guacamole, and the Roasted Red Pepper Aioli. Top with lime juice and cilantro before serving. 


Mayonnaise – If Whole30/Paleo, check the ingredient to make sure it is compliant. 

Taco Seasoning – This will make more spices than is needed for this taco recipe. Extra spices can be stored in containers and used on tacos, chicken, or beef as need.  

  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Category: Main Dish
  • Cuisine: Tex Mex

Keywords: mushroom tacos, vegan tacos, mushroom recipes