Begin by preheating your oven to 375°F (190°C). This ensures that your mushrooms will cook evenly and become wonderfully golden.
Wipe your mushrooms clean with a damp cloth. Remove the stems gently, keeping the caps intact. Chop the stems finely and set them aside.
In a mixing bowl, combine the chopped mushroom stems, Italian-style breadcrumbs, grated Parmigiano Reggiano, minced parsley, thyme, garlic, salt, and black pepper. Drizzle in the extra virgin olive oil and mix until everything is evenly coated and the mixture resembles wet sand.
Using a spoon, generously fill each mushroom cap with the breadcrumb mixture. Press it down lightly to ensure it stays in place.
Place the stuffed mushroom caps on your baking sheet. Make sure they’re spaced apart to allow for even cooking.
Pour 2 tablespoons of water around the mushrooms on the baking sheet to create steam. Lightly spray the tops of the mushrooms with olive oil spray for an extra crispy finish.
Bake in the preheated oven for about 20-25 minutes, or until the tops are golden brown and the mushrooms are tender.
Once out of the oven, let them cool for a couple of minutes before serving. These mushrooms are best enjoyed warm!