Smoky Oyster Mushroom Tacos al Pastor

🌍 Cuisine: Mexican
🏷️ Category: Main Course
⏱️ Prep: 30 minutes
🍳 Cook: 20 minutes
👥 Serves: 4 servings

📝 About This Recipe

This plant-based reimagining of the beloved Mexico City street food classic swaps traditional pork for meaty, umami-rich oyster mushrooms. Marinated in a vibrant adobo of smoky achiote, earthy guajillo chilies, and sweet pineapple juice, the mushrooms achieve a perfect char that mimics the traditional 'trompo' rotisserie. It’s a celebratory dish that proves you don't need meat to capture the soul of authentic Mexican flavors.

🥗 Ingredients

The Mushroom 'Meat'

  • 1.5 lbs Oyster Mushrooms (shredded by hand into bite-sized strips)
  • 2 thick slices Fresh Pineapple (cored and cut into small wedges)
  • 3 tablespoons Neutral Oil (avocado or grapeseed oil for high-heat searing)

Al Pastor Adobo

  • 3 pieces Guajillo Chilies (dried, stems and seeds removed)
  • 2 tablespoons Achiote Paste (provides the signature deep red color and earthy flavor)
  • 1/2 cup Pineapple Juice (unsweetened)
  • 2 tablespoons Apple Cider Vinegar
  • 3 cloves Garlic (peeled)
  • 1 teaspoon Dried Mexican Oregano
  • 1/2 teaspoon Ground Cumin
  • 1 teaspoon Salt (adjust to taste)

For Serving

  • 12 pieces Corn Tortillas (small street taco size)
  • 1/2 cup White Onion (finely diced)
  • 1/2 cup Fresh Cilantro (roughly chopped)
  • 2 pieces Limes (cut into wedges)
  • 1/2 cup Salsa Verde (for drizzling)

👨‍🍳 Instructions

  1. 1

    Begin by rehydrating the guajillo chilies. Place them in a bowl of boiling water for about 10-15 minutes until soft and pliable.

  2. 2

    In a high-speed blender, combine the softened chilies, achiote paste, pineapple juice, apple cider vinegar, garlic, oregano, cumin, and salt. Blend until completely smooth.

  3. 3

    Prepare the oyster mushrooms by wiping them clean with a damp cloth. Hand-shred them into long, thin strips to mimic the texture of sliced pork.

  4. 4

    Place the mushrooms in a large bowl and pour the adobo marinade over them. Toss gently to ensure every crevice is coated. Let them marinate for at least 20 minutes (or up to 2 hours in the fridge).

  5. 5

    Heat a large cast-iron skillet or heavy griddle over medium-high heat with 2 tablespoons of oil. It needs to be very hot to achieve a good sear.

  6. 6

    Add the pineapple wedges to the dry side of the skillet first. Grill for 2-3 minutes per side until charred and caramelized. Remove and set aside.

  7. 7

    In the same skillet, add the remaining oil and the marinated mushrooms. Work in batches if necessary to avoid crowding the pan, which causes steaming rather than searing.

  8. 8

    Cook the mushrooms undisturbed for 4-5 minutes to develop a dark, crispy crust. Flip and cook for another 3-4 minutes until the edges are slightly charred and the sauce has thickened into a glaze.

  9. 9

    While the mushrooms finish, warm your corn tortillas. You can do this directly over a gas flame for a few seconds or in a clean pan until soft and fragrant.

  10. 10

    Chop the charred pineapple into smaller bits and toss them back into the skillet with the mushrooms for the final 30 seconds to warm through.

  11. 11

    Assemble the tacos: Place a generous spoonful of the mushroom and pineapple mixture into each warm tortilla.

  12. 12

    Top with a sprinkle of diced white onion and fresh cilantro. Serve immediately with lime wedges and your favorite salsa on the side.

💡 Chef's Tips

Don't wash oyster mushrooms under running water; they act like sponges and won't crisp up in the pan. For the best texture, use a cast-iron skillet—it retains the high heat necessary for that 'trompo' style char. If you can't find oyster mushrooms, King Trumpet mushrooms sliced into thin rounds or shredded with a fork work beautifully. If the marinade is too thick to blend, add a tablespoon of water or more pineapple juice to get it moving. Always warm your tortillas! A cold corn tortilla will break and ruin the taco experience.

🍽️ Serving Suggestions

Pair with a cold Hibiscus (Jamaica) Iced Tea or a crisp Mexican Lager. Serve alongside a bowl of Frijoles de la Olla (pot-cooked beans) for a complete meal. A side of Mexican street corn (Elote) rubbed with chili and lime complements the smokiness. Provide a variety of salsas, including a spicy Salsa de Arbol for those who like extra heat. Finish the meal with light, cinnamon-dusted churros.