Golden Air Fried Peppers and Onions

The Ultimate Guide to Easy Air Fryer Peppers and Onions: A Flavorful & Healthy Side Dish

Discover how to create the perfect Air Fryer Peppers and Onions – a vibrant, deliciously seasoned side dish that’s incredibly quick to prepare and loaded with irresistible flavor! If you’re searching for an effortless recipe that elevates any meal, this is it. This versatile dish can be enjoyed on its own for a light and easy dinner or served alongside your favorite main courses like juicy pork chops, savory chicken sausage, tender steak, or grilled fish. Get ready to transform simple vegetables into a culinary delight with the magic of your air fryer!

A white bowl of seasoned peppers and onions cooked in the air fryer with some peppers and onions in a pair of tongs ready to serve. The base of the air fryer is in the top left of the picture, and the pepper shaker with a small portion of a salt shaker is in the top right of the image.

This simple yet impactful recipe is destined to become a staple in your kitchen. With minimal ingredients and maximum flavor, these air-fried peppers and onions offer the perfect finishing touch to countless meals. It’s truly one of those tasty dishes that will quickly earn its place among your go-to favorites, not only because it’s incredibly delicious but also because it’s a healthy choice – low in calories and carbohydrates, allowing you to enjoy a satisfying meal without any guilt.

The beauty of this recipe lies in its adaptability. While the core method is straightforward (and detailed in the recipe card below, so be sure to scroll down for precise measurements and instructions!), there are endless ways to customize it to your personal preference. For instance, I particularly love pairing these vibrant veggies with some savory air fryer sausage, but feel free to experiment! Once you discover your favorite combination, I’d love to hear about it.

Why You’ll Love Air Fryer Peppers and Onions

Aside from being quick and easy, air frying peppers and onions brings out their natural sweetness and gives them a tender-crisp texture that’s hard to achieve with other cooking methods. The air fryer circulates hot air, ensuring even cooking and a slight caramelization without requiring excessive oil. This results in a healthier, lighter side dish that doesn’t compromise on flavor.

  • Speedy Preparation: Minimal prep time means dinner is on the table faster.
  • Bursting with Flavor: The high heat of the air fryer intensifies the natural sweetness of the vegetables.
  • Healthy & Nutritious: Low in calories and carbs, making it a guilt-free addition to any diet.
  • Incredibly Versatile: Pairs well with almost any protein or can stand alone.
  • Minimal Cleanup: Cooking in the air fryer often means less mess than stovetop frying.

Ingredients You’ll Need

This recipe calls for a handful of simple, fresh ingredients that come together to create a harmonious blend of flavors. Here’s what you’ll need:

  • Bell Peppers: I recommend using a mix of colors like green bell peppers, red bell peppers, yellow peppers, or even orange bell peppers. Each color adds a slightly different nuance in sweetness and a beautiful visual appeal to the dish. Remember to remove the seeds and slice them uniformly.
  • Red Onion: This variety offers a milder, slightly sweeter flavor profile compared to white onions, and its beautiful purple hue adds to the visual charm. Peel and slice it lengthwise.
  • White Onion: Known for its sharper, more pungent taste when raw, white onion mellows beautifully when cooked, developing a lovely sweetness. Peel and cut lengthwise to match the size of your peppers and red onions.
  • Extra Virgin Olive Oil: A drizzle of good quality olive oil is essential. It not only helps the seasonings adhere to the vegetables but also promotes browning and prevents sticking in the air fryer basket. You can also use other high-smoke-point oils.
  • Sea Salt: To enhance the natural flavors of the vegetables. Adjust to your taste preference.
  • Ground Black Pepper: A classic seasoning that adds a touch of subtle warmth and zest.
  • Garlic Powder: This provides a foundational layer of aromatic flavor without the intensity of fresh garlic, which can sometimes burn in the air fryer.
  • Red Pepper Flakes: For those who appreciate a little kick! These are optional but highly recommended to add a touch of gentle heat.
Ingredients picture with everything you need to make peppers and onions in the air fryer. Two round white plates, each consisting of a different ingredient, one plate with sliced red onions sliced, and one with sliced white onion. A third-round white plate with the seasoning, red pepper flakes, garlic powder, black pepper, and sea salt. Three glass bowls contain a different type of bell pepper and one small bowl of extra virgin olive oil.

How to Make Air Fryer Peppers and Onions: Step-by-Step Guide

Making these delicious peppers and onions in your air fryer is incredibly simple. Follow these easy steps for perfectly cooked vegetables every time:

  1. Prepare Your Vegetables:

    Carefully slice all your bell peppers and onions. For optimal and even cooking, aim for slices that are roughly the same size and thickness – ideally about 1/2-inch strips. This ensures everything cooks at the same rate, preventing some pieces from becoming overly soft while others remain too crunchy. Remember to remove seeds from bell peppers before slicing.

    Overhead picture of all the peppers and onions sliced. There is one large round white plate with the peppers and two small round plates, one with sliced white onions and the second consisting of sliced red onions. A small portion of the seasoning plate is shown in the bottom right corner of the image, and a tiny bit of the glass bowl with olive oil is at the very top of the picture.

  2. Combine & Season:

    Transfer the sliced peppers and onions into a large mixing bowl. Drizzle generously with extra virgin olive oil, then sprinkle with sea salt, ground black pepper, garlic powder, and red pepper flakes. Toss everything together thoroughly with a spoon or your hands, ensuring every piece of vegetable is evenly coated with the oil and spices. This step is crucial for distributing flavor.

    Overhead picture of a large glass bowl with sliced peppers and onions with a wooden spoon next to the bowl. Above the large bowl is a small round white plate with the seasoning and a small glass bowl with olive oil.

  3. Preheat & Load Air Fryer:

    If your air fryer requires preheating, do so at this stage. Prepare the air fryer basket with a light spray of nonstick cooking spray if you are concerned about sticking, although the olive oil usually suffices. Transfer the seasoned peppers and onions into the air fryer basket in a single layer, ensuring not to overcrowd it. Cook in batches if necessary to allow for proper air circulation and crisping.

    Overhead picture of a large glass bowl with onions and peppers topped with seasoning and olive oil.

  4. Air Fry to Perfection:

    Air fry the peppers and onions at 400°F (200°C) for approximately 15 minutes. The total cooking time may vary slightly depending on your air fryer model and how tender you prefer your vegetables. Look for them to be softened with slightly browned and caramelized edges.

    Overhead picture of peppers and onions in the air fryer basket, ready to cook. To the right of the basket is a wooden spoon. At the top left of the picture is a small portion of the air fryer base, with a salt and pepper shaker in the top right.

  5. Shake for Even Cooking:

    Midway through the cooking process (around the 7-8 minute mark), pause your air fryer and give the basket a good shake. This ensures all sides of the vegetables are exposed to the circulating hot air, promoting even cooking and consistent browning. You can also use a pair of tongs or a wooden spoon to stir them.

    Close-up picture of peppers and onions in the air fryer basket with a wooden spoon stirring halfway through the cooking process.

  6. Serve Immediately:

    Once the peppers and onions have reached your desired tenderness and have a lovely slight char, remove them from the air fryer and serve piping hot. They are best enjoyed fresh to savor their vibrant flavors and perfect texture.

Air fryer peppers and onions served in a round white bowl with a small portion of the air fryer base in the top left of the picture and sale and pepper shakers in the top right.

Top Tips for Perfect Air-Fried Veggies

Achieving perfectly tender and flavorful air fryer peppers and onions is simple with a few helpful pointers:

  • Don’t Overcrowd the Basket: This is perhaps the most crucial tip for air frying anything, especially vegetables. Overcrowding prevents proper air circulation, leading to steamed rather than crispy veggies. Cook in batches if necessary, even if it adds a few extra minutes.
  • Slice Uniformly: As mentioned in the instructions, consistency in slicing ensures even cooking. Uneven pieces will result in some being overcooked while others are still raw.
  • Season Generously: Vegetables can handle a good amount of seasoning. Don’t be shy with the olive oil, salt, pepper, and garlic powder. Taste and adjust if needed after cooking.
  • Embrace the Char: My little secret? You truly can’t go wrong with these veggies. Even if they develop a beautiful, slightly charred exterior, they’re still incredibly delicious! That bit of char adds depth of flavor and a rustic appeal. Don’t stress too much – these are forgiving and SO simple to get right!
  • Preheat Your Air Fryer: While not always strictly necessary, preheating your air fryer for 3-5 minutes at the cooking temperature can help the vegetables start cooking immediately and achieve a better texture.

Delicious Variations and Customizations

This recipe is a fantastic base for endless customization. Feel free to get creative and tailor it to your taste or what you have on hand:

  • Add Protein: To make this a complete meal, easily chop up and add pre-cooked proteins like air fryer brats, hot Italian sausage, polish sausage, or any other sausage you enjoy. Make sure to cook the meat first and then add it to the peppers and onions for the last few minutes of air frying, or simply mix them together after both components are cooked. Shredded chicken or steak strips also work wonderfully.
  • Introduce Other Vegetables: Expand your veggie medley by adding cubed sweet potatoes, zucchini, mushrooms, asparagus, cherry tomatoes, or even broccoli florets. Adjust cooking times as needed for denser vegetables.
  • Experiment with Oils: While extra virgin olive oil is classic, you can easily use avocado oil for its higher smoke point and neutral flavor, or even a touch of coconut oil for a subtle sweetness, especially if you’re leaning towards an Asian-inspired seasoning.
  • Spice It Up (or Down!): Beyond red pepper flakes, consider a pinch of smoked paprika for a smoky depth, chili powder for more heat, Italian seasoning for an herbaceous touch, or even a dash of onion powder to boost that savory flavor. Fresh herbs like chopped parsley or cilantro can be added after cooking for a burst of freshness.
  • A Tangy Finish: Drizzle with a little balsamic vinegar, fresh lemon juice, or a splash of apple cider vinegar right before serving for a bright, tangy contrast that cuts through the richness.
  • Cheesy Goodness: For a decadent twist, sprinkle some grated Parmesan or shredded mozzarella over the vegetables during the last couple of minutes of cooking, allowing it to melt and get slightly bubbly.

How to Serve Air Fryer Peppers and Onions

These air-fried peppers and onions are an incredibly versatile side dish that can elevate nearly any meal. While you could make this on the stovetop, the air fryer truly delivers a superior texture and flavor. It’s a healthy, low-effort addition that pairs beautifully with a wide variety of main courses:

  • Classic Pairings: Serve alongside grilled chicken, steak, fish, or any roasted meat. They are perfect with air fryer onions or air fryer calamari.
  • Breakfast/Brunch: Mix them into scrambled eggs, omelets, or serve as a side for breakfast burritos.
  • Tacos & Fajitas: A natural fit! Use them as a flavorful filling for tacos, burritos, or fajitas.
  • Sandwiches & Wraps: Add them to hot sandwiches, subs, or wraps for an extra layer of flavor and texture. Think Philly cheesesteak, but healthier!
  • Bowls & Salads: Incorporate them into grain bowls, protein bowls, or hearty salads for a warm and satisfying component.
  • Pizza Topping: Spread them over homemade pizza for a burst of roasted veggie flavor.

Storing and Reheating Your Leftovers

Cooked air fryer peppers and onions are excellent for meal prep or enjoying as leftovers. Here’s how to properly store and reheat them:

Once this flavorful side dish is cooked, allow it to cool completely to room temperature. Transfer the cooled vegetables to an airtight container. They must be stored in the refrigerator and kept cold to maintain freshness. For the best quality and flavor, consume them within two to three days of cooking.

When you’re ready to eat, you have a couple of reheating options:

  • Microwave: For a fast and easy reheat, place the desired portion in a microwave-safe dish and heat for 1-2 minutes, or until warmed through. Stir halfway for even heating.
  • Air Fryer: To regain some of that delicious crispy texture, reheat in the air fryer at 350°F (175°C) for 3-5 minutes, shaking the basket once or twice, until heated through and slightly re-crisped.

Can you freeze cooked peppers and onions?

Absolutely! Freezing cooked peppers and onions is a fantastic way to save time on future meal prep. After cooking, let them cool down completely. Then, transfer them to a freezer-safe bag or an airtight container, removing as much air as possible to prevent freezer burn. They can be stored in the freezer for up to 3 months.

To thaw, simply transfer the frozen mixture to your refrigerator overnight. Once thawed, you can reheat them using the microwave or air fryer methods described above. This convenient trick means you can always have a flavorful veggie side ready to go!

Can you use frozen peppers and onions in the air fryer?

Yes, you can! If you’re short on time, using pre-sliced frozen peppers and onions is a convenient option. There’s no need to thaw them beforehand. Simply toss the frozen vegetables with olive oil and seasonings as you would with fresh ones, then place them directly into your air fryer basket. You might need to increase the cooking time by a few minutes (e.g., 18-20 minutes total) and shake the basket more frequently (every 5 minutes) to ensure they cook through and develop that nice air-fried texture, as they will release more moisture initially. The result will still be delicious, making it a great quick weeknight solution.

A close-up picture of peppers and onions cooked in the air fryer with a pair of tongs that have peppers and onions serving ready to serve.

More Delicious Air Fryer Recipes to Try

If you’re loving the convenience and delicious results from your air fryer, here are some other fantastic recipes to add to your repertoire:

  • Air Fryer Calamari: Crispy and tender, a healthier take on a seafood favorite.
  • Air Fryer Shishito Peppers: A quick, addictive snack or appetizer with a unique flavor.
  • Air Fryer Blooming Onion: Get that restaurant classic at home without the deep-fryer mess.
  • Air Fryer Stuffed Peppers: A hearty and satisfying meal cooked to perfection.
  • Air Fryer Onions: Simple, caramelized onions perfect as a topping or side.
A close-up picture of peppers and onions cooked in the air fryer and served in a round white bowl.















5 from 1 vote
Servings: 4

Air Fryer Peppers and Onions

By Jen
This Air Fryer Peppers and Onions recipe is the perfect, flavorful, and healthy side dish! It pairs beautifully with any main entree and is incredibly easy to make.
Prep: 5 minutes
Cook: 15 minutes
Total: 20 minutes
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Equipment

  • 1 Air Fryer

Ingredients 

  • 3 bell peppers, seeded and cut lengthwise into 1/2-inch slices
  • 1 red onion, peeled and cut lengthwise into 1/2-inch slices
  • 1 white onion, peeled and cut lengthwise
  • tbsp extra virgin olive oil
  • tsp sea salt
  • tsp ground black pepper
  • 1 tsp garlic powder
  • ¼ tsp red pepper flakes
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Instructions 

  • Carefully slice the bell peppers and onions into 1/2-inch strips for even cooking.
  • Transfer the sliced vegetables to a large bowl.
  • Drizzle with olive oil, then add sea salt, ground black pepper, garlic powder, and red pepper flakes. Toss well to ensure all vegetables are evenly coated.
  • Preheat your air fryer to 400°F (200°C) and lightly spray the basket with nonstick cooking spray if desired.
  • Add the seasoned peppers and onions to the air fryer basket in a single layer. Air fry for 15 minutes, or until desired tenderness and slight char are achieved.
  • Shake or stir the peppers and onions halfway through the cooking process (around the 7-8 minute mark) for even browning.
  • Serve your perfectly air-fried peppers and onions immediately and enjoy!

Nutrition

Calories: 95kcal, Carbohydrates: 11g, Protein: 2g, Fat: 6g, Saturated Fat: 1g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Sodium: 880mg, Potassium: 281mg, Fiber: 3g, Sugar: 6g, Vitamin A: 2833IU, Vitamin C: 118mg, Calcium: 21mg, Iron: 1mg

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


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Conclusion: Your New Favorite Air Fryer Side Dish!

Air Fryer Peppers and Onions are a testament to how simple ingredients, combined with the efficiency of an air fryer, can yield truly exceptional results. This recipe offers a fantastic balance of flavor, ease, and health benefits, making it an ideal choice for busy weeknights or a colorful addition to any meal. Whether you’re looking for a quick side, a healthy snack, or a versatile base for a more elaborate dish, these perfectly cooked vegetables will not disappoint. Give them a try and discover your new favorite way to enjoy peppers and onions!