
Air fryers are a convenient and healthy way to cook fajita vegetables. The super-hot air gives veggies a crispy texture without the need for stirring or the risk of ingredients sticking to the pan. The air fryer also preheats and cooks faster than an oven, making it perfect for quick, tasty, and healthy meals. The most common vegetables used for fajitas are onions, bell peppers, and portobello mushrooms, but you can use any seasonal vegetables you like. To cook, simply slice the vegetables, coat them in oil and seasoning, and cook in the air fryer for 10 to 15 minutes at 390°F (200°C).
| Characteristics | Values |
|---|---|
| Vegetables | Portobello mushrooms, peppers, onions, zucchini, cauliflower, sweet potatoes, squash, carrots, broccoli, tofu, beans, corn |
| Oil | Olive oil, avocado oil, grapeseed oil |
| Temperature | 390°F (200°C) |
| Timing | 10-15 minutes |
| Fajita Sauce | Store-bought or homemade |
| Toppings | Cilantro leaves, vegan crema, guacamole, sour cream, lemon juice, vegan yoghurt |
| Tortillas | Flour or corn tortillas |
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What You'll Learn

Choosing your vegetables
Peppers are a staple in fajitas, and you can use any colour of bell peppers, including green, yellow, and orange. Onions are also a key ingredient, and you can choose from sweet, yellow, or red onions. These two ingredients form the base of your fajita veggies and will provide a delicious, sweet and charred flavour when cooked in the air fryer.
Now, for the mushrooms, portobello mushrooms are the most common choice due to their "'meaty'" texture. However, if you can't find portobello mushrooms, white button mushrooms are a suitable alternative. Mushrooms add a hearty and substantial element to your fajita veggies.
If you want to include more vegetables, you can add thinly sliced carrots, broccoli, zucchini, or cauliflower. These vegetables will cook quickly in the air fryer and provide a nice crunch. Just be mindful of the cooking times for each vegetable, as denser vegetables like sweet potatoes or squash may need to be chopped into smaller pieces and cooked for longer.
You can also add plant-based proteins to your fajita veggies, such as tofu, beans, or corn, to make them more filling. So feel free to experiment and choose the vegetables that appeal to your taste buds!
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Preparing your sauce
For a basic fajita spice mix, you will need cumin powder, chilli powder, cayenne pepper, garlic powder, onion powder, paprika, and salt. You can add this to a bowl with some olive oil and vegetable broth, or blend all the ingredients in a blender until smooth. If you don't have all these spices, you can use a pre-made fajita seasoning mix. You can also add BBQ sauce to your veggies before adding the seasoning mix.
If you want to make a larger batch of sauce, you can double the recipe, but you will need to cook the veggies in two batches in the air fryer. You can also add any leftover sauce to the veggies before cooking; this will keep them moist and prevent them from drying out.
Slice your vegetables into thin strips and place them on a large plate. Pour the prepared sauce over the veggies and ensure they are well coated. If you have time, you can let the veggies marinate for 15-20 minutes, or even up to an hour if possible, so they can absorb the flavour.
Finally, preheat your air fryer to 390°F (200°C) for 3-5 minutes. If your air fryer does not require preheating, you can skip this step. Spray the air fryer basket with some oil, transfer the veggies inside, and cook for 10-15 minutes, tossing them gently after 5-8 minutes for even cooking.
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Cooking times and temperatures
The cooking time for fajita vegetables in an air fryer depends on the type of vegetables used and the number of servings. The cooking time also varies slightly across sources.
For example, one source recommends cooking the vegetables at 390°F (200°C) for 10 to 12 minutes, shaking the basket frequently. Another source suggests a similar cooking time of 7 to 9 minutes at the same temperature, shaking the basket halfway through. This source also provides an oven-baked alternative, recommending a cooking time of 20 to 25 minutes at 400°F (200°C).
If you are cooking for two people, you can use one pepper, two to three fajitas per person. For four people, you can double the recipe but may need to cook the vegetables in two batches. A larger batch may require a longer cooking time, so it is advisable to check the vegetables after 15 minutes.
Additionally, the type of vegetables used can impact the cooking time. For example, quick-cooking vegetables like zucchini or cauliflower can be added as-is, while denser vegetables like sweet potatoes or squash should be chopped into smaller pieces to align with the cooking time of peppers and onions.
It is also worth noting that the air fryer's capacity may affect the cooking time. One source mentions that a standard-sized air fryer (28oz/800g capacity) can make 6-8 fajitas, while another source states that an air fryer with a 4.3-litre capacity is suitable for vegetarian fajitas.
To ensure even cooking, it is recommended to spread the vegetables in a single layer in the air fryer basket and stir or shake them during the cooking process.
Some recipes suggest preheating the air fryer for about 3 to 5 minutes at 390°F (195-200°C) before adding the vegetables. However, if your air fryer does not require preheating, you can skip this step.
The total cooking time for fajita vegetables in an air fryer, including preparation and cooking, is generally around 20 to 30 minutes. This allows for time to slice the vegetables, prepare any sauces or marinades, and cook the vegetables in the air fryer.
In summary, the cooking time for fajita vegetables in an air fryer depends on various factors, including the type of vegetables, the number of servings, and the capacity of the air fryer. The recommended temperature for cooking fajita vegetables is consistently mentioned as 390°F (200°C), while the cooking time ranges from 7 to 15 minutes, depending on the desired level of doneness and the specific recipe followed.
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Stirring and shaking
When it comes to cooking fajita veggies in an air fryer, the beauty of this appliance is that it's largely hands-off, and you don't need to stir the veggies as you would in a frying pan. However, to ensure even cooking, it's a good idea to shake the basket frequently during the cooking process.
The shaking and stirring of the veggies in the air fryer basket help to distribute the heat evenly and prevent them from sticking to the basket. This is especially important if you're cooking a larger batch of veggies, as overcrowding the basket can lead to uneven cooking. By giving the basket a good shake every few minutes, you can ensure that all the veggies are getting their time in direct contact with the hot air, resulting in more consistent cooking.
Additionally, stirring or tossing the veggies can help distribute any sauces or seasonings you've added. For example, if you're using a fajita marinade or a simple olive oil coating, shaking the basket will help ensure that all the veggies are evenly coated, enhancing the flavour and texture of your final dish.
While the air fryer does reduce the need for constant stirring, it's still important to keep an eye on your veggies to prevent overcooking or burning. Depending on the recipe and the type of veggies you're using, the cooking time in an air fryer can vary from 7 to 15 minutes. So, it's a good idea to check on your veggies periodically and give them a gentle stir or shake to ensure even cooking.
Remember, the key to successful fajita veggies in an air fryer is to strike a balance between hands-off convenience and occasional intervention. By shaking and stirring the veggies at regular intervals, you can achieve evenly cooked, flavourful results without the constant attention required by other cooking methods.
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Serving suggestions
Air fryer fajita vegetables are a delicious and healthy meal that can be served in a variety of ways. Here are some serving suggestions to get you started:
Tortillas
One classic way to serve fajita veggies is by wrapping them in warm, soft tortillas. You can choose between flour or corn tortillas, depending on your preference. Warm the tortillas on a skillet, over a direct flame, or in the air fryer itself. Place the cooked fajita veggies on the tortillas and add your choice of toppings. Some popular topping options include:
- Cilantro leaves
- Vegan crema or guacamole
- Vegan sour cream or regular cream
- Lemon juice
- Vegan yoghurt
- Chopped onions
- Halloumi cheese
- Beans
- Mushrooms
- Corn
Vegan Burrito Bowl
If you're looking for a tortilla-less option, you can serve your fajita veggies in a vegan burrito bowl. Simply layer the cooked veggies over some rice or quinoa and add your favourite toppings, such as chopped onions, cilantro, and vegan crema.
Quesadillas
Make some extra fajita veggies and store them in the fridge. The next day, use the leftovers to make tasty quesadillas. You can use the same toppings as you would for the tortillas or burrito bowl, or experiment with new combinations.
Taco Bowls
Air fryer fajita veggies are also a great filling for taco bowls. You can use the same cooking method as for fajitas, ensuring that the veggies are nicely charred and tender. Serve them in a bowl with your choice of rice, beans, salsa, cheese, and other toppings.
Sides and Appetizers
Air fryer fajita veggies can also be served as a side dish or appetizer. They make a delicious and healthy addition to any meal and can be served alongside other air-fried foods, such as chicken fajitas or tofu.
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Frequently asked questions
The most common vegetables for fajitas are onions, bell peppers (green or any other colour) and large portobello mushrooms. Mushrooms add a "'meaty' texture to the recipe. If you can't find portobello mushrooms, regular white button mushrooms will do. Other vegetables that can be used for fajitas include thinly sliced carrots, broccoli, zucchini, sweet potatoes, and squash.
Set the temperature to 390 degrees F (200 C) and cook for 10 to 12 minutes. If you like your veggies more charred, cook for an additional 2 minutes.
Slice your peppers and onions and place them into a large mixing bowl. Add olive oil and seasoning mix. Toss to coat. Spread the veggies out evenly in the air fryer basket to ensure they cook thoroughly.
Yes, make sure to shake or stir the vegetables as they cook to ensure even cooking. Check on your veggies after 5 minutes and toss them in the basket gently.
Cooking the vegetables takes around 10 to 15 minutes. The whole meal, including preparation and cooking time, can be done in under 30 minutes.











































