Best-Ever Veggie Fajitas

🌶️ The Ingredients

With a savory blend of garlic, soy sauce, chili powder, cumin, and onion powder, these veggie fajitas come together in sizzling harmony—delivering an authentic, restaurant-style flavor wrapped in warm flour tortillas with all the classic fixings. Find ingredient notes (including substitutions and variations) below.

🍆 Substitutions and Variations

• Portobello mushrooms:
  Swap with cremini or button mushrooms for a milder flavor, or use zucchini, eggplant, or jackfruit for a different texture. (Note: Portobellos add meaty depth and soak up the fajita seasoning beautifully.)
• Bell peppers:
  Use a mix of red, yellow, and orange for sweetness, or add poblano or Anaheim peppers for a smoky twist. (Note: Roasting or charring the peppers enhances their natural sweetness.)
• Onions:
  Red onions bring a touch of sweetness, while white or yellow onions give a sharper bite. You can also add shallots for a milder, more refined flavor.
• Garlic:
  Fresh minced garlic gives the best flavor, but garlic powder can be used in a pinch (about ½ teaspoon per clove).
• Soy sauce:
  Substitute with tamari for a gluten-free option or liquid aminos for a slightly sweeter, lower-sodium alternative. (Note: Soy sauce adds umami depth that mimics the savoriness of traditional fajita marinades.)
• Chili powder:
  Replace with smoked paprika for a milder, smoky heat or a blend of cayenne and paprika for more kick.
• Ground cumin:
  Essential for that earthy, Tex-Mex flavor—if you’re out, try ground coriander or taco seasoning as a backup.

See the recipe card (with video) below for a full list of ingredients and measurements.

🔥 Tips and Tricks for the Best-Ever Veggie Fajitas

• et the pan hot: Use a large cast-iron skillet or heavy pan and let it heat until it’s almost smoking before adding the vegetables — this ensures a beautiful char and that signature fajita sizzle.
• Don’t overcrowd the pan: Cook the vegetables in batches if needed. Overcrowding traps steam and prevents those caramelized edges that make fajitas irresistible.
• Slice evenly: Cut all the vegetables (especially peppers and onions) into similar-sized strips so they cook evenly and stay tender-crisp.
• Marinate briefly: Toss the mushrooms and veggies in the soy sauce, garlic, and spices for 10–15 minutes before cooking to deepen the flavor.
• Add spices at the right time: Sprinkle the chili powder, cumin, and onion powder during cooking — this helps the seasonings bloom in the heat and coat the veggies evenly.
• Finish with lime juice: A quick squeeze of fresh lime right before serving brightens the flavors and balances the savory notes.
• Warm the tortillas: Heat flour tortillas briefly over an open flame, in a dry skillet, or wrapped in foil in a warm oven — this keeps them soft and pliable.

👩🏼‍🍳 How To Make Veggie Fajitas

1. Step 1: Sauté the mushrooms in the oil until soft. Set aside.

2. Step 2: Add a little more oil and sauté peppers and onion until soft, about 10 minutes.

3. Step 3: Return the mushrooms to the pan and stir in the chili powder, paprika, cumin, and onion powder. Sauté for 2 minutes.

4. Step 4: Heat the tortillas over a gas flame, in a skillet, or warm in the microwave. Wrap in linen until ready to serve.

5. Step 5: Heat your fajita skillet (or regular skillet) over medium-high heat and then add the veggies.

6. Step 6: Serve while still sizzling with lemon wedges.

💃🏻 How To Serve

• Build-your-own fajita bar:
  Serve the sizzling veggies straight from the skillet with warm flour tortillas and a variety of toppings so everyone can customize their own fajitas.
• With classic toppings:
  Offer guacamole, sour cream, pico de gallo, shredded cheese, homemade salsa, and fresh cilantro for authentic flavor and texture contrast.
• Add a squeeze of lime:
  A touch of fresh lime juice brightens the flavors and ties everything together.
• With sides:
  Pair with Mexican rice, refried or black beans, or a simple corn salad for a complete meal.
• As a bowl:
  Skip the tortillas and serve the seasoned veggies over steamed rice, quinoa, or cauliflower rice, topped with avocado and salsa for a lighter option.
• With a crunchy element:
  Add tortilla chips or strips for extra texture, especially if serving fajita bowls.
• For a crowd:
  Keep the veggies warm in a skillet or on a griddle and serve with a stack of tortillas wrapped in a clean towel to stay soft.

🙋🏽‍♂️ Frequently Asked Questions

😋 Other Classic Tex-Mex Recipes To Try

Ready to make the best Tex-Mex vegetarian dish this side of El Paso? Go for it!

And when you do, be sure to take a photo of them, post it on Instagram, and tag @HowToFeedaLoon and hashtag #HowToFeedaLoon!