Name: Vegetarian Fajitas Recipe
Prep time: 15 min
Cook time: 6 min
Total time: 21 min
Cuisine: Mexican
Ingredients: 1 teaspoon chili powder; 1 teaspoon ground cumin; 1 teaspoon smoked paprika; 1/2 teaspoon garlic powder; 1/2 teaspoon onion powder; 3/4 teaspoon salt; 1/4 teaspoon ground black pepper; tiny pinch cayenne pepper, optional; 2-3 tablespoons olive oil; 1 large red bell pepper, seeded and sliced; 1 large green bell pepper, seeded and sliced; 1 large yellow bell pepper, seeded and sliced; 1 medium red onion, sliced; 8 ounce package cremini or button mushrooms, sliced; lime wedges; corn or flour tortillas; guacamole or sliced avocado; pico de gallo or other salsa; black beans; Vegan Sour Cream; Shreddable Vegan Mozzarella

Jump to Recipe· 4.7 from 20 reviews

If you’re craving a vibrant, mouthwatering dinner that’s both healthy and totally satisfying, you’re going to love this Vegetarian Fajitas Recipe. It’s quick to make, packed with fresh veggies, and full of that smoky, spicy fajita flavor we all adore. Whether you’re cooking for a weeknight meal or a relaxed weekend hangout, these veggie fajitas bring warmth and flavor to your table every time. Let me walk you through how I make them just right — and how you can make them your own!

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Why This Recipe Works

Simple, fresh ingredients: The combination of colorful bell peppers, onions, and mushrooms is a classic that always sings with that perfect fajita vibe.
Homemade seasoning mix: Crafting your own spice blend means you control the heat and smokiness, making it perfectly tailored to your taste buds.
Quick cooking technique: Cooking the veggies just right keeps them tender-crisp with lovely caramelized spots — no soggy fajitas here!
Super versatile: You can dress these up with any toppings or tortillas you love, making them great for everyone at the table.

Vegetarian Fajitas, Vegetarian Fajitas Recipe, Healthy Vegetarian Fajitas, Easy Veggie Fajitas, Spicy Vegetarian Fajitas - The image shows a close-up of a black pan filled with a colorful mix of cooked vegetables, including long slices of red, green, and yellow bell peppers, as well as small pieces of browned mushrooms and translucent cooked onions. A white spatula is partially visible on the left side, lifting some of the vegetable mixture. The vegetables appear soft and well cooked, with varied textures from the tender onions and mushrooms to the slightly firm bell peppers. The background is out of focus but shows more of the dark surface of the pan. photo taken with an iphone --ar 2:3 --v 7

Ingredients & Why They Work

Each ingredient in this vegetarian fajitas recipe plays its part to create layers of flavor and texture. The bell peppers lend sweetness and crunch, mushrooms add that meaty umami boost, and the spice blend brings warmth and depth. Here are my top tips when shopping for these ingredients.

Vegetarian Fajitas, Vegetarian Fajitas Recipe, Healthy Vegetarian Fajitas, Easy Veggie Fajitas, Spicy Vegetarian Fajitas - Flat lay of vibrant red, green, and yellow bell peppers sliced into long strips, glossy cremini mushrooms with rich brown caps and smooth texture, thinly sliced red onion rings showing their deep purple and white layers, bright green lime wedges with juicy segments visible, fresh cilantro sprigs with delicate leaves, ripe avocado halves with creamy green flesh, and a small pile of colorful chili powder, ground cumin, and smoked paprika powders in warm red and orange hues artfully scattered, placed on white marbled surface, photo taken with an iphone --ar 2:3 --v 7

Chili powder: Look for a good-quality blend for richer flavor — some brands add oregano or garlic for extra complexity.
Ground cumin: Freshly ground cumin packs a punch — if you can grind your own seeds, even better!
Smoked paprika: This is the secret that gives fajitas that beautiful smoky note without needing a grill.
Garlic powder & onion powder: These add background savory layers that enhance the fresh veggies.
Bell peppers: Choose vibrant, firm peppers for the best texture and sweetness — red, green, and yellow mix beautifully.
Red onion: Adds a touch of sharpness and slight sweetness when caramelized.
Mushrooms: Cremini or button mushrooms both work great, offering chewiness that pairs perfectly with the peppers.
Olive oil: Use a good quality, fruity olive oil for sautéing to bring everything to life.

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Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Tweak to Your Taste

I love how flexible this vegetarian fajitas recipe is — you can really make it your own depending on what mood you’re in or what’s in your fridge. I often switch up the peppers depending on the season, or add a splash of lime juice at the end for brightness. Don’t be shy about customizing!

Mushroom swap: When I want a heartier meal, I sometimes use vegan chicken strips instead of mushrooms; it’s a game-changer for texture and protein.
Spice level: Feel free to up the cayenne or add fresh jalapeños if you like things spicy — you hold the power here!
Oil-free option: If you’re avoiding oil, just use a splash of water as you cook — it works surprisingly well, letting the veggies soften without frying.
Tortilla choices: I usually alternate between corn and flour tortillas depending on my gluten preference and crowd.

Step-by-Step: How I Make Vegetarian Fajitas Recipe

Step 1: Mix Your Magic Seasoning

I always start by mixing up the seasoning blend in a small bowl — the chili powder, cumin, smoked paprika, garlic and onion powders, salt, black pepper, and a pinch of cayenne if I’m feeling sassy. This makes sure the spices are evenly distributed when you toss them with the veggies. Trust me, this little prep step saves you from uneven flavor later on!

Step 2: Heat the Pan and Start Sautéing

I heat 2 to 3 tablespoons of olive oil in my trusty cast iron pan over medium-high heat. Once it’s shimmering, I add the sliced bell peppers, red onion, and mushrooms. Quick tip: stir frequently so the veggies cook evenly but don’t turn soggy. After about a minute, they’ll start to soften and get those gorgeous little charred spots.

Step 3: Add the Seasoning and Finish Cooking

Sprinkle the seasoning mix over the veggies and stir well, making sure all those spices coat every piece. I keep cooking for about 5 minutes, stirring frequently, until the veggies soften but still maintain a bit of crunch — that contrast between tender and crisp edges is what makes the fajitas sing. Then, I remove the pan from heat and get ready to serve.

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Pro Tips for Making Vegetarian Fajitas Recipe

Don’t overcrowd the pan: Give your veggies room to char slightly instead of steaming—this ups the flavor big time.
Cut veggies evenly: This ensures everything cooks at the same rate so you don’t end up with some raw and others mushy.
Use fresh spices: Spices lose potency over time — my fajitas always taste best with fresh seasoning mixes.
Serve immediately: The veggies are best enjoyed right off the pan when they’re hot and vibrant; leftovers can lose that special crispness.

How to Serve Vegetarian Fajitas Recipe

Vegetarian Fajitas, Vegetarian Fajitas Recipe, Healthy Vegetarian Fajitas, Easy Veggie Fajitas, Spicy Vegetarian Fajitas - Three soft white tortillas are open-faced and filled with layers of cooked vegetables including brown mushrooms, green and red bell pepper strips, and orange and yellow bell pepper strips, all mixed with small diced tomatoes and onions. Each tortilla has a dollop of white sour cream on one side, sprinkled with chopped green herbs. Lime wedges are placed beside the tortillas on a white marbled surface, which contrasts with the colorful vegetable layers. The tortillas have slight roasted brown spots, adding texture to the soft wraps. photo taken with an iphone --ar 2:3 --v 7

Garnishes

I keep it simple but fresh with lime wedges — a quick squeeze over veggies brightens everything up. On top, I love dollops of guacamole or sliced ripe avocado for creaminess, a spoonful of pico de gallo or salsa for zesty freshness, and vegan sour cream for that cooling bite. A little vegan mozzarella sprinkle adds melty, indulgent goodness too.

Side Dishes

For sides, black beans are a natural partner — hearty and protein-rich. Sometimes I throw together a quick corn salad or Mexican rice for more substance. If you want to keep things light, a fresh green salad with a tangy vinaigrette complements the fajitas wonderfully.

Creative Ways to Present

For casual dinners, I like serving all the components buffet-style so friends can build their own fajitas. For a special occasion, I’ve lined tortilla boats on a platter and piled the veggie mix inside, then topped each with fresh cilantro and avocado slices — it looks festive and feels extra special.

Make Ahead and Storage

Storing Leftovers

Leftover fajita veggies store beautifully in an airtight container in the fridge for up to 3 days. I let them cool completely before sealing to keep freshness. When I make more than needed (which often happens), I just store the seasoned veggies separately from any tortillas or guacamole for best results.

Freezing

I’ve frozen this veggie mix a couple times with decent success — I let the veggies cool, then freeze them in portioned containers. When thawed, the texture is a bit softer but still tasty. It’s a handy go-to for busy weeknights when you need a quick fix.

Reheating

To reheat leftover vegetarian fajitas, I prefer warming them in a skillet over medium heat with a splash of water or oil to revive that slight char and fresh texture. Microwave works too, but you might lose a bit of the crisp-edged charm. Serve hot with fresh garnishes like lime and avocado for best results.

FAQs

Can I make this Vegetarian Fajitas Recipe gluten free?

Absolutely! Just be sure to use corn tortillas instead of flour tortillas, and check any packaged toppings or seasoning ingredients to ensure they’re gluten free.
What if I don’t have smoked paprika?

No worries — you can use regular paprika plus a tiny pinch of chipotle powder or a drop of liquid smoke if you have it to mimic that smoky flavor. Or just go with sweet paprika and the fajitas will still be tasty!
Can I add protein to this recipe?

Yes! Vegan chicken strips, tofu, or tempeh marinated with the seasoning mix work beautifully. For extra protein without meat, black beans added as a topping or side are also great.
How spicy is this Vegetarian Fajitas Recipe?

The recipe has a mild to medium heat thanks to chili powder and optional cayenne. You can easily adjust the spice by adding more cayenne or fresh jalapeños, or tone it down by omitting the cayenne altogether.

Final Thoughts

This vegetarian fajitas recipe has become one of my go-to meals when I want something fast, flavorful, and totally satisfying without meat. The best part is how easy it is to customize — whether you keep it classic or jazz it up with your favorite toppings. Once you make it a couple of times, you’ll have your personal twists nailed down. Grab those fresh peppers, fire up your skillet, and enjoy the simple joy of homemade fajitas with your favorite people. Trust me, you’ll want to make it again and again!