Creating delicious stuffed Portobello mushrooms can be straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).

2. Prepare Mushrooms: Clean the Portobello mushrooms with a damp paper towel and remove the stems. Place them gill side up on a baking sheet.

3. Sauté Spinach: In a skillet, heat the olive oil over medium heat. Add the minced garlic and sauté until fragrant, about 1 minute. Then, add the chopped spinach and sauté for another 2–3 minutes until wilted.

4. Make Filling: In a mixing bowl, combine the sautéed spinach and garlic, ricotta cheese, mozzarella cheese, Parmesan cheese, oregano, salt, and pepper. Mix until well combined.

5. Stuff Mushrooms: Generously fill each Portobello mushroom cap with the cheese and spinach mixture. If desired, sprinkle breadcrumbs on top for extra crunch.

6. Bake: Place the stuffed mushrooms in the preheated oven and bake for 20–25 minutes, until the edges are golden and the cheese is bubbly.

7. Garnish: Remove the mushrooms from the oven and let them cool for a few minutes. Garnish with fresh basil before serving.

8. Serve Warm: Enjoy your stuffed Portobello mushrooms while warm, as they are best right out of the oven!

With these clear steps, you’ll create delicious stuffed Portobello mushrooms that’ll impress everyone at the dining table!