Mushroom and Bell Pepper Fajitas
Sizzling, smoky skillet fajitas loaded with meaty mushrooms and sweet bell peppers, all tossed in a zesty lime-cumin marinade. Ready in under 30 minutes, these vegetarian fajitas deliver all the charred, vibrant flavor of the Tex-Mex classic wrapped in warm flour tortillas.
For 4 servings
- prep
Prep the mushrooms, peppers, and onion.
1.Slice 400g cleaned mushrooms into thick slices (about 0.5 cm).2.Slice 2 bell peppers into thin strips.3.Peel and thinly slice 1 medium red onion.4.Mince 4 garlic cloves. - mix
Make the fajita seasoning and coat the vegetables.
1.In a large mixing bowl, toss mushroom slices, bell pepper strips, and onion slices with 2 tbsp olive oil until evenly coated.2.Sprinkle 1 tsp cumin powder, 1 tsp smoked paprika, 1 tsp chili powder, 1 pinch oregano, 1 pinch salt, and 1 pinch black pepper over the vegetables.3.Add the minced garlic and toss everything vigorously until no dry spice remains.TIPDon't crowd the mushrooms — coat them gently to avoid breaking the slices. - fry · ~10 min
Sear the vegetables until charred and tender.
1.Place a large cast-iron skillet over high heat and let it get screaming hot for 2 minutes.2.Spread the seasoned vegetables in a single layer. Let them sit untouched for 2 minutes to develop a char.3.Toss and cook for another 5-6 minutes, stirring only occasionally, until the mushrooms release their juices and brown, the peppers are tender-crisp, and the onion is slightly charred at the edges.TIPHigh heat is everything here — a hot skillet gives that restaurant-style char. Work in batches if your pan is small. - mix
Finish with fresh lime juice.
1.Remove the skillet from the heat.2.Squeeze 2 tbsp fresh lime juice over the sizzling vegetables and toss once to combine.TIPAdding lime off the heat keeps the citrus flavor bright and fresh rather than cooking it down. - grill · ~5 min
Warm the tortillas.
1.Heat a separate dry skillet or griddle over medium heat.2.Warm each flour tortilla for about 20-30 seconds per side until pliable and lightly toasted.TIPWrap warmed tortillas in a clean kitchen towel to keep them soft and steamy. - assemble
Assemble the fajitas.
1.Spoon the sizzling mushroom-pepper mixture down the center of each warmed tortilla.2.Top with a dollop of sour cream and a sprinkle of fresh chopped cilantro. - serve
Serve immediately while hot and sizzling.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Slice mushrooms thick (0.5 cm) so they hold up to high heat and develop a meaty texture.
- 2Preheat the cast-iron skillet for a full 2 minutes — a screaming-hot pan is essential for char.
- 3Don't stir the vegetables for the first 2 minutes; letting them sit undisturbed builds a deep sear.
- 4Work in batches if your skillet is small — overcrowding will steam the veggies instead of charring them.
- 5Add lime juice off the heat to preserve its bright, tangy flavor rather than cooking it out.
- 6Wrap warmed tortillas in a clean kitchen towel to keep them soft and pliable until serving.
Adapt it for your goals.
High-protein
Add 200g of crumbled firm tofu or 1 can of drained black beans along with the vegetables in the last 3 minutes of cooking for extra protein and heartiness.
low oilLow-oil
Replace the 2 tbsp olive oil with a few tablespoons of vegetable broth or water when tossing the seasoning, then dry-fry in a non-stick skillet to reduce fat without losing flavor.
spicySpicy
Add 1 sliced jalapeño or serrano pepper to the vegetable mix and swap mild chili powder for chipotle powder to turn up the heat.
veganVegan
Substitute sour cream with a dollop of cashew cream or a store-bought vegan sour cream alternative to keep the dish fully plant-based.
Why this is on our healthy list.
Rich in Vitamin C
Bell peppers are packed with vitamin C, which supports immune function and skin health. Red peppers contain more than green ones.
Good Source of B Vitamins
Mushrooms provide B vitamins like niacin and pantothenic acid, which help convert food into energy and support nervous system health.
Low in Calories
With mushrooms, peppers, and onions as the base, this dish is naturally low in calories while being filling and nutrient-dense.
Contains Antioxidants
Smoked paprika, cumin, and oregano add antioxidant compounds that help combat oxidative stress in the body.
Frequently asked questions
Yes, cremini (baby bella) or button mushrooms work best for their firm texture, but you can also use portobello caps sliced thickly, oyster mushrooms, or a mix.



