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Fajita Vegetables

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If you are looking for a great-tasting vegetable side that can be prepared in minutes, then try my Easy Fajita Vegetables. Sliced red onion and a variety of different colored bell peppers are stir-fried quickly in fajitas seasoning for a healthy vegetable side dish that is packed full of flavor.

A large serving dish filled with fajitas vegetables, with bowls of steamed white rice and black beans set alongside.

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Full Recipe Ingredients/Instructions are available in the 
recipe card at the bottom of the post. 
You can find important tips/tricks in the
blog post.

Healthy fajita veggies are the perfect mid-week side when you are pushed for time but want to put something tasty and nutritious on the table. Hands-on preparation is minimal; the whole dish can be prepared, cooked, and on the table in around 20 minutes.

I make vegetable fajitas with peppers and onions and season them with my homemade Fajitas Seasoning. Making your own seasoning blends is super simple, but you can use your favorite store-bought blend if you prefer.

My family loves Mexican dishes, they are always packed full of flavor, and it’s empty plates all around when I serve them. If you enjoy Mexican-inspired food, try my Air Fryer Steak Fajitas, Juicy Ground Turkey Tacos, Air Fryer Mexican Street Corn, or my Crispy Pork Carnitas.

Ingredients

Here’s what you will need to make the best fajita vegetables:

  • Olive oil – I use regular olive oil as extra virgin olive oil has too low a burn temperature.
  • Red onion – has a great mild flavor; you could also use a regular onion or shallots.
  • Bell peppers – I used red and green bell pepper, but you can use any color.
  • Fajita seasoning – I use my seasoning blend, which is simple to make, but you can use a store-bought blend if you choose.

How to make fajita vegetables

Heat the oil in a large skillet or frying pan over medium-high heat.

Add the sliced onion and bell peppers to the pan. Cook them undisturbed for 3-4 minutes, then stir fry them for 4 minutes or until they soften and get slightly charred.

Sliced red onion and red and green bell peppers in a large frying pan.

Sprinkle the fajita seasoning evenly over the vegetables in the pan. Toss well to coat them with the seasoning.

Sliced red onion and red and green bell peppers coated in fajitas seasoning, cooking in a large frying pan.

Continue cooking for 5-10 minutes until the vegetables are cooked to your desired softness. The longer you cook, the softer they will be.

Cooked red onion and red and green bell peppers in a large frying pan.

Remove the pan from heat and transfer the fajita vegetables to a serving dish.

A large serving dish filled with fajitas vegetables, with a red and green bell peppers, and bowls of steamed white rice and black beans set alongside.

Expert Tips

These tips will help you make the best fajita vegetables you’ve ever tried. 

  • I only prepare the vegetables just before I cook them; that way they remain crispy and juicy and don’t dry out.
  • Get the pan nice and hot before you start cooking the vegetables.
  • The trick is to cook the vegetables long enough so that they get a nice char around the edges but not so long as they become soggy.

Flavor variations

Feel free to mix the vegetables or the spices to suit your tastes!

  • Bell peppers and onions are traditional, but mushrooms, zucchini, or even carrot could work well too.
  • If you like your food extra spicy, add some freshly sliced red chili peppers, some red pepper flakes, or a dash of your favorite hot sauce.
  • Add a touch of smoky spice flavor with some chipotle paste.
  • For a burst of fresh herb flavor, garnish with some chopped cilantro.
A large serving dish filled with fajitas vegetables, with a red and green bell peppers, and bowls of steamed white rice and black beans set alongside.

How to serve fajita vegetables

Serve the flavorful fajita vegetables as a side dish alongside my Slow Cooker Black Beans and some steamed white rice. They work with a variety of Mexican-inspired dishes; try them in fajitas or tacos or as a burrito filling.

They are also perfect to serve with all of your favorite weeknight meals like my Air Fryer Chicken Breast or my Turkey Burgers.

How to store

To refrigerate: Fajita vegetables are best served hot, straight from the pan. However, leftovers can be stored in an airtight container in the refrigerator for 2-3 days. When ready to enjoy, place in a hot frying pan to warm through, not overcooking the vegetables.

A large serving dish filled with fajitas vegetables, with a red and green bell peppers, and bowls of steamed white rice and black beans set alongside.

FAQs

Do you marinate pepper and onions for fajitas?

No, there is no need to marinate the vegetables; the flavor comes from the freshness of the vegetables combined with the fajitas seasoning.

Are fajita veggies healthy?

Yes, this healthy vegetable side dish is low in fat and sugar. The onions and peppers are high in fiber, vitamins, and minerals, and a serving of this vegetable dish will go towards your all-important 5-a-day.

How to make fajita peppers and onions in the oven?

For speed, I cook my fajita vegetables in a frying pan. However, if you have the oven on, you can also cook fajita vegetables in the oven.

Toss the onions and peppers in olive oil and fajita seasoning, then place onto a nonstick baking sheet. Place the sheet into a hot oven at 425F/220C and roast the vegetables for 20 minutes.

If you have tried this fajita vegetable recipe, or any other recipe on my blog, please rate it and let me know how it turned out in the comments below!

A large serving dish filled with fajitas vegetables, with bowls of steamed white rice and black beans set alongside.
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5 from 1 vote

Fajita Vegetables

Easy Fajita Vegetables can be prepared and cooked in minutes. Sliced red onion and a variety of different colored bell peppers are cooked quickly in fajitas seasoning, for a healthy vegetable side dish that is packed full of flavor.
Course Side Dish
Cuisine Mexican
Keyword classic fajita vegetables, fajita vegetables, fajita veggies, homemade fajita seasoning
Prep Time 10 minutes
Cook Time 12 minutes
Total Time 22 minutes
Servings 4
Calories 91kcal
Author Tanya

Ingredients

  • 2 Tablespoons olive oil
  • 1 large red onion thinly sliced
  • 2 bell peppers (any color) thinly sliced
  • 2 teaspoons fajita seasoning

Instructions

  • Heat the oil in a large skillet or frying pan over medium-high heat.
  • Add the sliced onion and bell peppers to the pan. Cook them undisturbed for 3-4 minutes, then stir fry them for 4 minutes or until they soften and get slightly charred.
  • Sprinkle the fajita seasoning evenly over the vegetables in the pan. Toss well to coat them with the seasoning.
  • Continue cooking for 5-10 minutes until the vegetables are cooked to your desired softness. The longer you cook, the softer they will be.
  • Remove the pan from heat and transfer the fajita vegetables to a serving dish.
  • Serve the flavorful fajita vegetables as a side dish, in fajitas or tacos, or as a burrito filling.

Notes

Feel free to mix up the vegetables or the spices to suit your tastes! Bell peppers and onions are traditional, but mushrooms, zucchini, or even carrot could work well too.

Nutrition

Calories: 91kcal | Carbohydrates: 7g | Protein: 1g | Fat: 7g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Sodium: 4mg | Potassium: 189mg | Fiber: 2g | Sugar: 4g | Vitamin A: 2356IU | Vitamin C: 78mg | Calcium: 13mg | Iron: 1mg
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Although myforkinglife.com attempts to provide accurate nutritional information, these figures should be considered estimates. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Under no circumstances will myforkinglife.com be responsible for any loss or damage resulting for your reliance on nutritional information.

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