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Fajita veggies are the perfect side dish! Enjoy the classic Tex-Mex flavor at home with a few simple ingredients in under 20 minutes.

A skillet filled with fajita veggies that is ready for serving.
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Whether you want to make fajitas or just want a side of veggies, these sizzling skillet fajita veggies are always a great option. They are fresh, delicious and packed with so much flavor.

Serve the veggies on their own, over burrito bowls or with protein to create one of the best weeknight dinners. It’s a no fuss easy side dish. The best part is that they are easy to make!

If you love easy Tex Mex recipes like these fajita vegetables, try Chicken Chilaquiles, Steak Nachos or Shredded Beef next!

Why You’ll Love This Recipe

  • Quick and Easy – This easy side dish comes together in just 20 minutes.
  • Prep in Advance – You can prep the veggies in advance to save time. Or you can meal prep and prep the entire recipe in advance. Fajita veggies tastes great cold or reheated!
  • Family Friendly – Everyone will love this easy recipe and you can easily adapt to fit your needs.

This fajita veggie recipe is vegetarian, vegan, dairy free and gluten free.

Ingredients Needed

All of the ingredients are easy to find at your local grocery store. You may already have all of the ingredients you need in your fridge and pantry.

All of the ingredients for veggie fajitas in plates or bowls on a gray countertop - including bell peppers, onion, olive oil, lime juice and spices.
  • Bell Peppers: You can use a mix of any color bell peppers. I love using a mix of red, yellow and green bell peppers for color contrast. Ue fresh bell peppers for the best results.
  • Onion: Use red onions or yellow onions. I prefer the red onions for fajitas due to its mild flavor and vibrant color. But yellow onions are a great choice too with a natural sweetness that pairs well with the peppers.
  • Olive Oil: Use high quality extra virgin olive oil for the best flavor. You can also substitute with avocado oil, if desired.
  • Seasonings: You will need chili powder, ground cumin, dried oregano, garlic powder, paprika, salt and pepper for the homemade fajita seasoning. You can also substitute the seasonings for store-bought fajita seasoning.
  • (Optional): A pinch of cayenne and freshly squeezed lime juice are optional but add delicious flavor.

Equipment Needed

I usually use a standard cast iron skillet for this recipe. The cast iron pan heats evenly and allows the veggies to get slightly caramelized yet crisp and tender. You will also get that classic fajita sizzle. You can also use an enameled cast iron skillet or another type of large skillet.

How to Make Fajita Veggies

Fajitas are so easy to make. Here are the three steps you need to follow:

The sliced peppers and onions sit in an enameled cast iron skillet over olive oil with the spices sprinkled on top.
  1. Prepare the pan and vegetables: Heat the oil in a large skillet set over medium heat. Slice the bell peppers and onions into thin strips.
  2. Make the fajita seasoning: Combine all of the ingredients for the seasoning in a small bowl and mix well.
  3. Cook the veggies: Add the sliced bell peppers and onions to the preheated skillet. Sprinkle the seasoning over the veggies. Saute for 4 to 8 minutes, stirring frequently, until the veggies are crisp tender, or softened to your liking. Squeeze the lime juice over the sautéed peppers and onions and toss to combine, if desired. Remove from the heat and serve immediately.

Full instructions including exact measurements are available in the recipe card below.

Fajita Veggies in the Oven (On a Sheet Pan)

You can cook the veggies on a sheet pan in the oven instead of on the stovetop. Simply preheat the oven to 425 degrees Fahrenheit. Stir together all of the ingredients in a large bowl. Line a baking sheet with parchment paper. Add the veggies in a single layer. Roast in the preheated oven for 15 minutes, then stir and continue cooking for another 10 minutes, until tender.

Fajita veggies cooked in a blue enameled cast iron skillet that is ready for serving.

Recipe Tips

  • Slice the bell peppers into thin, even-sized slices. This will ensure they cook evenly.
  • Feed a crowd! Fajitas are a great option for dinner parties or to feed a large family. You can double or triple to recipe and cook in batches to feed a crowd.
  • Storage: Store leftovers in an airtight container in the refrigerator for up to 2 days. You can reheat in a skillet or in the microwave.
A serving spoon scoops up sliced cooked fajita veggies.

Serving Suggestions

  • Make chicken fajitas, steak fajitas or shrimp fajitas! Serve the protein and veggies with flour or corn tortillas.
  • Make veggie fajitas: Simply add the fajita veggies to tortillas or add sliced mushrooms to the bell peppers and onions while cooking. You can also serve the fajita veggies with pinto beans or black beans.
  • Add toppings: Serve the bell peppers and onions over tortillas and load up the toppings. Sour cream, guacamole, sliced jalapenos, fresh tomatoes, hot sauce and cilantro are great choices.
  • Serve them over a ground beef burrito bowl, tacos or in a quesadilla.

Did you try these homemade Fajita Veggies? Leave a recipe rating and review below.

Fajita veggies cooked in a blue enameled cast iron skillet that is ready for serving.
5 from 2 votes

Easy Fajita Veggies

By Ashley C.
Enjoy perfect fajita vegetables at home with a few simple ingredients in a sizzling skillet in under 20 minutes.
Prep: 10 minutes
Cook: 10 minutes
Total: 20 minutes
Servings: 4
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Ingredients 

  • 2 tablespoons extra virgin olive oil
  • 3 medium bell peppers, thinly sliced
  • 1 large onion, thinly sliced
  • 1 1/2 teaspoons chili powder
  • 1 1/2 teaspoons ground cumin
  • 1 teaspoon dried oregano
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon paprika
  • 1/2 teaspon salt
  • 1/4 teaspoon freshly ground black pepper
  • Pinch cayenne pepper, (optional)
  • 1/2 lime, (optional)

Instructions 

  • Heat the oil in a large skillet set over medium heat. Combine the seasonings in a small bowl and mix well.
  • Add the peppers and onions to the skillet. Sprinkle the seasoning over the vegetables. Saute for 4 to 8 minutes, stirring frequently, until the veggies are crisp-tender, or softened to your liking. Squeeze the lime juice over the veggies and toss to combine, if desired. Remove from the heat and serve immediately.

Notes

STORAGE: Store leftover fajita veggies in a sealed container in the refrigerator for up to 2 days. 

Nutrition

Calories: 111kcal, Carbohydrates: 11g, Protein: 2g, Fat: 8g, Saturated Fat: 1g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 5g, Sodium: 68mg, Potassium: 298mg, Fiber: 3g, Sugar: 6g, Vitamin A: 3164IU, Vitamin C: 120mg, Calcium: 37mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Side Dish
Cuisine: American
Tried this recipe?Mention @spoonfulflavor or tag #spoonfulflavor!

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5 from 2 votes

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2 Comments

  1. I made these to pair with our shredded chicken tacos. I ended up using them to top the tacos. So easy and so good!