Easy Fajita Veggies Recipe (Onions and Peppers)

This Easy Fajita Veggies recipe with onions and peppers will instantly add some sizzle to your Taco Tuesday! It’s easy, flavorful, and comes together quickly in one pan. These veggies are perfect for fajitas (of course!) tacos, burrito bowls, salads, fajita nachos…and I even like to add them to my scrambled eggs!

Looking for easy dinners? Try my Spicy Chicken Chipotle Pasta, Baked Ground Chicken Tacos, or this Mexican Chicken Casserole!

Fajita veggies recipe in a cast iron skillet with tongs.
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What you’ll love about this recipe:


  • EASY SIDE DISH – This easy recipe has a few main ingredients and comes together quickly.
  • DIFFERENT WAYS TO SERVE – Homemade fajita veggies are so versatile and go great tucked into a warm tortilla, topped with sour cream and fresh cilantro. Or add them to your morning eggs – the options are endless.
  • MEAL PREP FRIENDLY – Make a batch of fajita veggies on the weekend to have during the busy week. They are a great make-ahead dish.

RECIPE INGREDIENTS

You’ll need the following ingredients to make this delicious Fajita Veggies Recipe:

Ingredients needed to make easy fajita veggies.

INGREDIENT NOTES

  • Veggies: A simple blend of classic fajita vegetables include red onions and sweet bell peppers. My favorites are red, orange, and yellow bell peppers. But you can use green bell peppers if you prefer.
  • Fajita seasoning blend: This is a Mexican-inspired blend of simple seasonings and herbs that commonly include chili powder, paprika, cumin, onion powder, cayenne pepper, and other spices. You can also use taco seasoning!

HOW TO MAKE EASY FAJITA VEGGIES: STEP-BY-STEP

Here are some quick visual instructions. Remember that full instructions with exact ingredients will be in the printable recipe card below!

Step 1: In a large skillet over medium heat, add 2 tablespoons of olive oil. When the oil is warm, add minced garlic and saute until fragrant. Increase the heat to medium-high heat and add the onions. Cook for about 2-3 minutes or until they start to soften a bit, stirring often.

Step 2: Add the sliced bell peppers and stir to combine. Cook for 5-8 minutes, stirring often.

Onions for fajita onions and peppers cooking in a pan.
Red bell peppers for fajita veggies being added to a pan.

Step 3: Add the fajita or taco seasoning and stir to combine. Keep cooking until the veggies are tender to your liking.

Fajita onions and peppers cooking in a cast iron skillet with a wooden spoon.

RECIPE TIPS & TRICKS

  • Use the right skillet. A cast-iron skillet or another thick-bottomed pan is best for heat retention. I also use a large, deep-sided non-stick skillet.
  • Char at high heat. For a more authentic fajita flavor, turn up the heat towards the end of cooking to allow the fajita veggies to develop some charred edges.

Confidence Tip

To save time, purchase pre-cut onions and bell peppers. Your local grocery store may already sell packaged and ready-to-go fajita vegetables.

STORAGE & REHEATING

Storage: Store leftover fajita veggies in an airtight container in the fridge for 5 days.

Reheating: To reheat, transfer the fajita veggies to a skillet and reheat over medium heat. Add a splash of olive oil if necessary. Stir occasionally until heated through.

ADDITIONS & SUBSTITUTIONS

ADDITIONS:

  • Mushrooms – Sliced mushrooms add earthiness and texture to these veggies. Try portobello mushrooms or white button mushrooms.
  • Beans – Consider stirring in drained and rinsed can of black beans or pinto beans for added protein and fiber.
  • Give it spice – Add a few sliced jalapenos and a dash of hot sauce for an extra kick.

SUBSTITUTIONS:

  • Onion varieties – You can substitute red onion with white or yellow onions based on preference and what you have on hand.

YOUR QUESTIONS ANSWERED

How can I use these fajita veggies?

Fajita veggies are so versatile and can be included in many different dishes. You can tuck them into warm flour tortillas like in ground beef tacos, drizzle fresh lime juice, and add your favorite toppings. You can also top salads and make fajita bowls with an easy protein like air fryer chicken breast or Dutch oven carnitas, quesadillas, and even add them to chicken fajita pizza, and these loaded fajita nachos! But they’re also a great addition to eggs, omelets, and breakfast burritos.

What can I use instead of fajita seasoning?

You can quickly whip up a batch of homemade fajita seasoning by mixing 2 parts of cumin and one part of each: chili powder, paprika, garlic powder, and onion powder. Or you can also use taco seasoning if you have that in your pantry.

Can I use frozen bell peppers and onions instead of fresh?

Yes, you can, but I personally don’t like the texture. I prefer my veggies crisp-tender and you don’t get that with frozen veggies. That being said, of course you can use frozen veggies in a pinch 🙂

Easy fajita veggies in a flour tortilla with guacamole.

I hope you love these yummy Fajita Veggies! If you make them be sure to leave a comment and a rating so I know how you liked it. Enjoy, xo!

Square cropped photo of fajita veggies in a cast iron skillet.

Easy Fajita Veggies Recipe

Casey Rooney
This Easy Fajita Veggies recipe with onions and peppers will instantly add some sizzle to your Taco Tuesday! It's easy, flavorful, and comes together quickly in one pan. These veggies are perfect for fajitas (of course!) tacos, burrito bowls, salads…and I even like to add them to my scrambled eggs!
5 from 7 votes
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course vegetable
Cuisine American, Tex-Mex
Servings 6
Calories 95 kcal

Ingredients
  

  • 2 tbsp olive oil
  • 2 tbsp minced garlic
  • 1 small red onion, thinly sliced
  • 3 large bell peppers, thinly sliced use a combo of colors!
  • 1-2 tbsp fajita seasoning or taco seasoning homemade or store-bought
  • salt/pepper to taste
  • juice of 1-2 limes (optional)

Instructions
 

  • Cook garlic: in a large skillet over medium heat, add 2 tablespoons of olive oil. When the oil is warm, add minced garlic and stir for about 30 seconds until you can smell the garlic.
  • Add Onions: Turn the heat to medium-high and add the onions. Cook about 2-3 minutes until they start to soften a bit, stirring often.
  • Add Peppers: Add the bell peppers, and cook for about 5-8 minutes. Stir often!
  • Finish: Add the fajita or taco seasoning and keep cooking until the veggies are tender to your liking (I personally like my veggies crisp-tender!). Serve these veggies with a protein or make veggie fajitas or fajita bowls!

Notes

Nutrition is only an estimate based on the Very Well Fit Nutrition Calculator
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Nutrition

Calories: 95kcalCarbohydrates: 12.5gProtein: 1.3gFat: 5gSaturated Fat: 1gSodium: 284mgPotassium: 220mgFiber: 1.7gSugar: 6.4gCalcium: 16mgIron: 1mg
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Recipe Rating




8 Comments

  1. 5 stars
    These are absolutely perfect. I’ve always had such a hard time getting my onions and peppers perfect in my fajitas.

  2. 5 stars
    Not only was this delicious, but it was an awesome opportunity to make this deliciousness in my cast iron skillet. Thank you!

  3. This recipe is always a huge hit in our family! It’s easy, quick and full of delicious healthy vegetables. Thank you for sharing another great recipe!

  4. 5 stars
    I loved this recipe and won’t be using it for just fajitas. These veggies will go great with so many of our meals!

  5. 5 stars
    We had fajitas for dinner last night and these veggies were perfect! Still slightly crisp, but soft enough to enjoy!