Air Fryer Portobello Mushrooms

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Looking for a great vegetarian main dish? These Air Fryer Portobello Mushrooms are easy to cook in the air fryer. They get toasty on the outside, but stay juicy and soft on the inside.

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A Portobello mushroom sliced
 

Air fryer Portobello Mushrooms can be served as a main dish or a side dish that can be served anytime, because they go with so many different things. Serve them as a vegetarian main dish or sliced alongside some chicken and veggies.

I love portobellos because they’re meaty and savory; this recipe takes mushrooms to the next level in taste, texture and flavor. More importantly, you only need three simple ingredients.

Ingredients You Need

Ingredients for air fryer Portobello mushrooms
  • Portobello mushrooms – You can go with large or small portobello mushrooms. Look for ones that are firm and dry.
  • Extra Virgin olive oil – You can use any cooking oil you prefer, but olive oil gives these mushrooms a nice savory, slightly peppery flavor.
  • Salt & pepper – Mushrooms need salt to build flavor, so don’t skimp!
  • Italian seasoning – I like the blend of Italian herbs on mushrooms, but you can use any seasoning you like, or just stick with salt.

Why Use an Air Fryer

An air fryer is an incredibly easy way to cook just about anything. You place the food in a fryer-style basket and hot air rapidly circulates all around the food, making the food crisp – much like deep-frying, but without the oil. You can cook anything you’d make in the oven.

How to Make Air Fryer Portobello Mushrooms

Clean and dry the mushrooms. Rub the mushrooms with the olive oil and sprinkle on the seasonings. For this I use a pastry brush. Just mix the seasonings into the oil and brush it onto both sides of the mushrooms. The oil will soak in pretty quickly.

Seasoning an uncooked Portobello mushroom

Place each mushroom, cap side down, in the air fryer basket. Don’t overlap them or they won’t cook properly. I can fit two side by side in my air fryer. You might have to cook one at a time, depending on how they fit into your basket or tray.

Two uncooked Portobello mushrooms in the air fryer basket

Air fry at 400° F for 5 minutes. Flip the mushrooms over and air fry for an additional 4-7 minutes, until browned and tender. Since all air fryers are slightly different, your cook time might vary. If you like your mushrooms more or less cooked, that’s easy to adjust in the air fryer, just keep an eye on them and remove them when you’re ready.

Two Portobello mushrooms in the air fryer basket

How to Serve Them

You can serve portobello mushrooms whole. They make a great vegetarian/vegan main dish or replacement for a steak for those of use trying to cut back on beef.

You can also slice them and serve them with some chimichurri, teriyaki sauce, or yum yum sauce, just as you would a protein like chicken or steak.

For a great meatless Monday meal, serve half of an air fryer Portobello mushroom alongside roasted potatoes and asparagus.

Two Portobello mushrooms

Tips and Notes

  • Mushrooms require cleaning before use, but they should not be washed as excess water in the mushroom affects cooking. Instead, you can clean the mushroom with a damp cloth by gently rubbing the entire surface. Just try to avoid breaking the skin.
  • The thickness of your mushrooms and your desired level of tenderness will determine the cooking time. If you like them to be more or less cooked, just keep an eye on them and take them out when you think they’re tender enough for you.
  • You don’t need much oil when making Portobello mushrooms; little oil is needed to get the right taste and look. Since they tend to soak up oil when it’s poured on, resist the urge to add more.

Possible Substitutions

  • Mushrooms need salt so don’t leave that out, but you can substitute other seasonings for the Italian seasoning. Try fresh rosemary, thyme, or dill.
  • Large portobello mushrooms can be quite large. You might try using baby bella mushrooms for a smaller version.
A Portobello mushroom sliced

Frequently Asked Questions

Can I eat the gills of mushrooms?

Yes, you can eat the gills of mushrooms. The gills are the thin strips under the mushroom cap. They have a soft texture that can get a bit crispy in the air fryer. They are completely edible.

How do I know when the mushroom is cooked?

It is difficult to overcook mushrooms, but if you overdo it, they will become darker and harder as the water starts to dissipate. You can cook them to your own preference, since mushrooms don’t need to be cooked to any particular degree to be “done”.

How long can I store the Portobello mushrooms?

These air fryer portobello mushrooms are best served immediately after cooking. However, you can store them in an airtight container in the refrigerator for about four or five days. When they start to feel or look slimy, they should be thrown out.

Cooked or raw portobello mushrooms can be frozen for up to 10 months in a freezer-safe bag.

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Two cooked Portobello mushrooms

Air Fryer Portobello Mushrooms

Looking for a great vegetarian main dish? These Air Fryer Portobello Mushrooms are easy to cook in the air fryer. They get toasty on the outside, but stay juicy and soft on the inside.
5 from 37 votes
Prep Time 5 mins
Cook Time 10 mins
Total Time 15 mins
Course Main Course, Side Dish
Cuisine American
Servings 4 Servings
Calories 50 kcal

Equipment

Ingredients
  

  • 4 portobello mushrooms
  • 1 tablespoon Extra Virgin olive oil
  • 1/4 teaspoon salt
  • 1/4 teaspoon Italian seasoning
  • 1/8 teaspoon ground black pepper

Instructions
 

  • Clean and dry the mushrooms. Rub the mushrooms with the olive oil and sprinkle on the seasonings.
  • Place each mushroom, cap side down, in the air fryer basket. Do not overlap.
  • Air fry at 400° F for 5 minutes. Flip the mushrooms over and air fry an additional 4-7 minutes, until browned and tender. Since all air fryers are slightly different, your cook time might vary.

All air fryers have different wattage and may cook at different rates. You may need to adjust the time or temp for the best results.

Nutrition

Calories: 50kcalCarbohydrates: 3gProtein: 2gFat: 4gSaturated Fat: 1gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 3gTrans Fat: 0.003gSodium: 153mgPotassium: 308mgFiber: 1gSugar: 2gVitamin A: 2IUVitamin C: 0.003mgCalcium: 5mgIron: 0.3mg
Keyword Mushrooms
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Whole air fryer Portobello mushrooms and one that is sliced.

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