Portobello Mushroom Fajitas Recipe
These Portobello Mushroom Fajitas are a flavorful and healthy vegetarian twist on the classic fajita. Roasted to perfection with a blend of spices and olive oil, the mushrooms, onions, and bell peppers become tender and caramelized, making a delicious filling that pairs wonderfully with warm corn tortillas and creamy sliced avocado.
- Author: Clara
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Total Time: 35 minutes
- Yield: 4 servings 1x
- Category: Dinner
- Method: Baking
- Cuisine: Mexican
- Diet: Vegetarian
Vegetables
- 4 large portobello mushroom caps (sliced, about 16 oz if pre-sliced)
- 1 large onion (sliced)
- 1 bell pepper (sliced)
Spices & Oil
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon ground cumin
- 1 teaspoon chili powder
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1/4 teaspoon paprika
- 1/4 cup olive oil
Other
- Juice of 1/2 lime
- 8 yellow corn tortillas (for serving)
- Sliced avocado (for serving)
- Preheat Oven: Preheat your oven to 450°F (232°C) to ensure it’s hot enough for roasting the vegetables to get a nice caramelization.
- Combine Vegetables: In a large glass casserole dish, add the sliced portobello mushrooms, onion, and bell pepper, preparing them as the hearty base for the fajitas.
- Add Seasonings: Sprinkle in salt, pepper, cumin, chili powder, garlic powder, onion powder, and paprika. Pour the olive oil over the vegetables to help coat and season evenly.
- Mix Thoroughly: Use your hands to mix all the vegetables and spices together in the casserole dish, making sure every slice is well coated with oil and seasoning for full flavor.
- First Bake: Place the casserole dish in the preheated oven and bake for 15 minutes to begin roasting and softening the vegetables.
- Stir and Continue Baking: Remove from oven, stir the vegetables to redistribute and ensure even cooking, then bake for another 5 to 10 minutes until the vegetables are beautifully roasted and caramelized.
- Add Lime Juice: Once the vegetables are cooked, squeeze the juice of half a lime over them and give a final stir to add a fresh, tangy brightness.
- Serve: Serve the roasted portobello mushroom fajita filling hot on yellow corn tortillas and garnish with sliced avocado for a creamy contrast.
Notes
- You can substitute bell pepper color based on preference for a different flavor profile.
- For extra heat, add a pinch of cayenne pepper or chopped jalapeños to the seasoning mix.
- These fajitas are naturally gluten-free when served with corn tortillas.
- Make sure not to overcrowd the casserole dish to allow proper roasting and caramelization.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days and reheated.
Keywords: Portobello mushroom fajitas, vegetarian fajitas, roasted mushroom fajitas, Mexican vegetarian recipe, healthy fajitas, gluten-free fajitas