Looking for an EASY vegan dinner idea? This healthy recipe can be made in under 20 minutes! Sheet pan veggie fajitas are easy to make and incredibly delicious. Taco seasoning plus vegetables are an irresistible combination. This vegan recipe is perfect for meal prep and everyone will love making their own vegetable fajitas.

Veggie Fajitas defy being pigeon holed into a season. Am I right or am I right? I feel like they are always a good choice. Of course, I think a DIY taco bar, or fajita bar is the best possible choice for dinner (any time of year)….whether you’re having 1, 2 or 17 people over. So easy, and everyone can make theirs exactly how they want. When you use a sheet-pan to make the vegetables you make this dish that much easier on yourself. And why in the world not??

Are veggie fajitas hard to make?
Um…NO! One of the best reasons to make sheet pan veggie fajitas is because they are so easy to make. PRO TIP: You can meal prep the veggies in advance for a super quick weeknight meal.
- Prep the Veggies.
- Drizzle on olive oil, lime juice, spice mixture.
- Roast.
- Build your fajita inside a shell with your favorite toppings.

What to put in fajitas?
Traditionally, fajitas are made with bell peppers and onions. That’s it for veggies. BUT….you could really use any vegetables you want. Maybe I’d call that roasted veggie tacos….but with this spice mixture it would definitely have a fajitas vibe! I added mushrooms to the mix to give these a little umami, and still keep them vegan. What would you add to your mix?

What about shells?
Well…that depends on your preference. I like almond flour shells best, but we often use corn tortillas because those are hubbies favorite. Look for non GMO or organic corn and no processed oils in your tortillas. I like to heat the tortillas on the stove top over an open flame. You can also wrap the shells in a damp paper towel and heat/steam them in the oven. Lettuce leaves are great for wrappers as are collard greens or swiss chard. Cabbage leaves also work well.

What are good toppings for Vegetable Fajitas?
Guacamole or avocado slices are my personal favorite.
Many restaurants serve rice and beans on the side. I opt for Mexican Cauli-Rice. Another sheet pan recipe that is simple…and a great low-carb alternative to rice.
Salsa or pico de gallo is a tasty topping. This recipe for tomatillo salsa is great when tomatillos are in season. You can sub regular tomatoes using that same recipe too.
I like spice, so you will always see fresh jalapenos (or other spicy peppers) sliced in our fajita bar.
A simple slaw is another option for on top of or on the side of fajitas.
I always have a bowl of extra lime slices and fresh cilantro as additional toppings.

What do I do with leftover veggie fajitas?
Store any leftover veggies in an air-tight container in the fridge for up to 5 days. They can be reheated in the oven or in a heavy skillet on the stove. They are awesome the next day, served hot or cold….as a topping for salad or inside of tacos. The flavors will be a bit more intense…in the best possible way. I also use them as the base for a frittata…YUM.

So, as we try our best to make summer last…just a bit longer, please….and enjoy endless rounds of sheet pan veggie fajitas, I know that another season is upon us and I will enjoy these just as much in the fall and the winter and the spring. Truthfully, I’ve never met a veggie fajita I didn’t like.

📖 Recipe

Sheet Pan Veggie Fajitas
Ingredients
- 1 medium purple onion halved and then sliced
- 2 yellow bell peppers cored, seeded and sliced
- 2 red bell peppers cored, seeded and sliced
- 2 green bell peppers cored, seeded and sliced
- 6 oz. baby bella mushrooms sliced
- 3 Tablespoons olive oil
- 1 lime zested and juiced (2 Tablespoons juice)
- Corn or Flour tortillas I used almond flour tortillas
- Lettuce or cabbage leaves for shells
- Black beans
- Guacamole or avocados
- Cauliflower Rice
- Tomatillo Salsa
- Pico de Gallo
- Sliced jalapenos
- Additional slices of lime.
- Fresh Cilantro
SEASONING
- 3 teaspoons chili powder*
- 1 teaspoon cumin
- 1 teaspoon sweet paprika
- 1 teaspoon oregano
- ½ teaspoon onion powder
- ½ teaspoon garlic powder
- ½ teaspoon coarse sea salt
Instructions
- Preheat oven to 400
- Mix all spices, plus lime zest, together in small bowl and set aside.
- Prep all veggies. See photos above. Slice the top and bottom off bell peppers, seed and core and then slice. Peel the onion; halve and then thinly slice. Use a damp paper towel to gently clean dirt off mushrooms, then slice.
- Place all veggies in a large bowl, drizzle with olive oil and lime juice. Toss to evenly coat. Sprinkle on spice mixture and mix thoroughly, but gently so mushrooms don’t fall apart.
- Spread veggies on rimmed baking sheet that is large enough to fit everything in one layer.
- Roast for 10 minutes. Stir and then continue roasting for an additional 5-10 minutes, until veggies are sizzling and desired tenderness.
- If you prefer, you can make these in a heavy skillet. Preheat a cast iron skillet over medium-high heat. Swirl in 2 Tablespoons of the oil and toss in the onions and mushrooms. Cook, stirring often for 5 minutes. Add remaining Tablespoon of oil, the bell peppers and spice mixture. Continue cooking, tossing frequently until veggies are tender. Squeeze on the lime juice, toss well and serve warm.
- Leftover veggies can be stored in the fridge in an air-tight container for up to 5 days. You can reheat them in a 350 oven for 15 minutes or in a heavy skillet with a medium-high heat for 3-5 minutes.
Notes
- Corn or flour tortillas (I used Siete brand almond flour tortillas.
- Lettuce or cabbage leaves for "shells"
- Red Enchilada Sauce
- black beans
- guacamole or avocado slices
- Mexican Cauli-Rice
- tomatillo salsa
- sliced jalapenos
- additional slices of lime
- fresh cilantro,
Nutrition
Note
The nutrition calculations were done using online tools. To obtain the most accurate representation of the nutritional information in any given recipe, you should calculate the nutritional information with the actual ingredients you used. You are ultimately responsible for ensuring that any nutritional information is accurate, complete and useful.







Carmela Mancini
Amazing recipe! The fajitas were delicious. Easy to make too.
Debra Klein
Thanks…so glad you tried them.
Oscar
My favorite kind of meal, I love fajitas and making them on a sheet pan seems so much easier. What a great idea and love that it’s a vegan recipe.
Debra Klein
Easy and healthy is what it’s all about!
Rob
These fajitas are always a huge hit! So flavorful and, best of all, super easy to make!
Debra Klein
Love to hear it. Thank you.
Jami
I’m a HUGE fan of sheet pan dinners. It doesn’t get much better than this. So healthy, and I love all the colors!
Debra Klein
Same…and the leftovers are fabulous too!
Alexandra
This recipe made for the perfect easy dinner – a sheet pan really does save so much time and cleaning up! Loved all of the veggies and flavours together. Nutritious and delicious – my kind of meal!
Debra Klein
Thanks Alexandra…my kinda meal too!
Donna
Yum, these veggie fajitas were so full of flavor and color! The perfect weeknight meal, and great for meatless Monday.
Debra Klein
Awesome Donna…glad you enjoyed them.
Carole
Lacking all the fresh veggies, I used up the rest of a bag of mini sweet peppers, added an onion and some frozen veggies that needed eating — wow… that roasting spice mix is so good. Whatever you do, never neglect the lime zest and juice, plus the jalepeno’s are a must. I make my own tortillas since I cannot find good ones where I live–and tortillas are the simplest and quickest of all flat breads to make.
Debra Klein
Good job….yes, the spice mixture is what makes the veggies fajita flavor….good for you to use what you had…and it sounds like it came out great!
Amanda Marie Boyle
I love sheet pan recipes. This looks so good and so easy! Yum!
Debra Klein
Right? Nothing better than a one pan, easy clean up too.
Chef Dennis
I would love to sit down to those fajitas! They look ah-mazing!
Debra Klein
Thank you….yours in under 30 minutes!
Estelle Forrest
Love when food is so vibrant and colorful! And black beans are a great protein alternative. Thanks for sharing
Debra Klein
You’re welcome. Because….we eat with our eyes first, it’s gotta be pretty!
Taleen | Just As Tasty
These fajitas look so colorful and delicious! Love how easy you make it all look, pinning this recipe for sure.
Debra Klein
Thank you! It really is an easy recipe. Perfect for meal prep too.
Amanda
Yum — this was such a great way to get lots of veggies into my diet! The seasoning was fabulous and so flavorful.
Debra Klein
Awesome….we love the flavors of this one too.