Step 1

Combine the breadcrumbs, Pecorino-Romano, mozzarella, parsley, mint, garlic, 2 tablespoons of the olive oil, 1/2 teaspoon salt and 1/4 teaspoon pepper in a medium bowl and toss to blend.

Step 2

Toss the mushrooms with the remaining 2 tablespoons olive oil in a large bowl and arrange on a small baking sheet or plate with the cavities facing up. Divide the breadcrumb mixture among the mushrooms, filling the cavities and pressing down gently to secure.

Step 3

Place half the mushrooms in a single layer in the basket of a 3.5-quart air fryer. Set the air fryer to 360 degrees F and cook until the filling is bubbling and browned, about 10 minutes. Repeat with the remaining mushrooms.