15-Minute Keto Air Fryer Stuffed Mushrooms

These vegetarian stuffed mushrooms cook in 8 to 10 minutes with browned caps and a creamy spinach-cheese center.

Air Fryer Stuffed Mushrooms Keto Recipe

Choose similarly sized cremini mushrooms and keep the filling level with each cap. A single uncrowded layer helps moisture escape instead of collecting underneath.

Prep time: 5 minutes
Cook time: 8 to 10 minutes
Air fryer temperature: 375 degrees F
Yield: 16 mushrooms
Serving size: 4 mushrooms

Mushrooms, spinach, cream cheese, mozzarella, Parmesan, garlic and seasonings — Remove the stems before mixing the filling so the caps are ready to stuff.

Ingredients

16 medium cremini mushrooms, about 12 oz
4 oz cream cheese, softened
1/2 cup shredded low-moisture mozzarella
1/4 cup finely grated Parmesan
1 cup packed baby spinach, finely chopped
1 garlic clove, finely minced
1 teaspoon extra-virgin olive oil
1/2 teaspoon dried Italian seasoning
1/4 teaspoon kosher salt
1/4 teaspoon black pepper
1 tablespoon chopped parsley for serving

How to Make Keto Stuffed Mushrooms in the Air Fryer

Preheat the air fryer to 375 degrees F for 3 minutes.
Wipe the mushrooms with a damp paper towel.
Twist out the stems and reserve them for another recipe.
Stir cream cheese, mozzarella, Parmesan, spinach, garlic, olive oil, Italian seasoning, salt, and pepper for 60 seconds.
Divide the filling into 16 equal portions.
Spoon one portion into each cap without packing it tightly.
Arrange the mushrooms upright in one layer with 1/2 inch between caps.
Air fry at 375 degrees F for 8 minutes.
Check the filling and cook for 1 to 2 additional minutes if the tops remain pale.
Rest for 2 minutes, then finish with parsley.

Creamy spinach cheese filling being spooned into cremini mushroom caps — Level filling cooks more evenly than a tall mound and is less likely to touch the heating element.

Leave room around every cap

Mushrooms release water as they cook. Visible space around each cap lets hot air circulate and reduces liquid pooling in the basket.

Vegetarian stuffed mushrooms cooking upright in an air fryer basket — Cook in two batches if the caps cannot remain upright without touching.

How to Prevent Watery Stuffed Mushrooms

Wipe the caps instead of soaking them in water.
Use low-moisture mozzarella.
Chop spinach finely and pat it dry.
Preheat the air fryer for the full 3 minutes.
Keep the caps in one layer.
Rest cooked mushrooms on a plate rather than inside the warm basket.

Keto Serving Notes

The filling contains no breadcrumbs or flour. Check cheese and seasoning labels, then compare the complete serving with your personal carbohydrate target.

Storage and Reheating

For safe handling and storage, follow the USDA air-fryer food-safety guidance, including prompt refrigeration and clean utensils.

Refrigerate within 2 hours in a shallow sealed container at 40 degrees F or colder.
Use within 3 days.
Reheat at 350 degrees F for 3 to 4 minutes.
Heat leftovers to 165 degrees F.
Do not freeze because the caps and dairy filling become watery after thawing.

Build an air fryer appetizer plate with zucchini pizza bites, air fryer radishes, or crispy asparagus.

Air Fryer Stuffed Mushrooms FAQ

Can I prepare them ahead?

Yes. Fill the raw caps, cover, and refrigerate for up to 12 hours. Air fry directly from the refrigerator and expect 1 additional minute.

Why did the filling leak?

The caps were probably overfilled or cooked too close to the heating element. Use level portions and leave adequate clearance above the basket.