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Mushroom, Rajas, and Corn Taco with Queso Fresco

This vibrant vegetarian dish brings together the smoky depth of roasted chillies and the natural sweetness of charred corn. Known as 'rajas' in Mexican cuisine, the strips of fire-roasted poblano and Anaheim peppers provide a mild heat that perfectly complements the earthy flavour of sautéed cremini mushrooms. Finished with fresh coriander and salty cheese, these tacos offer a sophisticated balance of textures and tastes that elevate a simple midweek meal into a celebration of authentic Mexican-inspired street food.

Perfect for a relaxed dinner with friends or a nutritious family lunch, these homemade tacos are as healthy as they are satisfying. The use of fresh corn and minimal oil keeps the dish light, while the combination of mushrooms and queso fresco ensures a protein-rich, savoury filling. Serve these with a generous spoonful of salsa quemada and a squeeze of lime to bring out the brightness of the ingredients. They are best enjoyed immediately while the corn tortillas are still warm and pliable.

Continue reading below

Ingredients for Mushroom, Rajas, and Corn Taco with Queso Fresco

  • 2 Anaheim chillies

  • 1 poblano chilli

  • 240ml fresh corn kernels (about 1 ear)

  • 1 1/2 tablespoons olive oil

  • Kosher salt

  • 1/2 white onion, peeled and cut into 1/2-inch dice

  • 1 large clove garlic, thinly sliced

  • 170g cremini or white button mushrooms, trimmed and quartered

  • 6 fresh epazote leaves, chopped (about 1 tablespoon , optional)

  • Fresh-ground black pepper

  • 120ml queso fresco, cut into small cubes

  • 6 warm corn tortillas

  • Salsa quemada

  • 1/4 cup grated cotixa or añejo cheese

  • Coriander sprigs

  1. Roast the chillies as for rajas and cut them into 1/2-inch dice.

  2. Heat a heavy pan (preferably cast iron) over medium-high heat until very hot.

  3. In a bowl, toss the corn with 1 teaspoon of the olive oil and a sprinkling of salt. Spread the corn in the hot pan and let it blacken slightly, without stirring, for 30 seconds. Have a lid ready in case the kernels begin to pop. Remove the roasted corn from the pan.

  4. In the same pan, heat 2 teaspoons of the olive oil. Add the onion and diced chillies and cook, stirring often, until the onion is soft and beginning to brown. Season lightly with salt and remove from the pan.

  5. Reduce the heat and add the remaining olive oil. Add the garlic and mushrooms. Cook, stirring often, until the mushrooms are cooked through, 2 to 3 minutes. Return the corn and chillies to the pan and stir to reheat.

  6. Turn off the heat and stir in the epazote, if using, black pepper, and queso fresco.

  7. To assemble the tacos, spoon some vegetables onto a tortilla. Top with a generous tablespoon of salsa and sprinkle about 1 teaspoon of cotixa cheese over all. Top with a coriander sprig.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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