This Spinach and Cheese Stuffed Portobello Mushroom recipe is a simple, comforting dish packed with tender spinach, creamy ricotta, Parmesan, and melted mozzarella. The hearty portobello mushrooms become wonderfully tender in the oven, while the cheesy filling adds plenty of savory flavor.
Whether you serve them as a vegetarian main dish, an easy side, or a light dinner, these stuffed mushrooms are an effortless way to turn everyday ingredients into something special.
Why You’ll Love This Recipe
- Full of flavor: Garlic, onion, spinach, ricotta, Parmesan, and mozzarella create a rich and savory filling.
- Simple to make: A short ingredient list and straightforward preparation make this recipe beginner-friendly.
- Family-friendly: The creamy, cheesy filling makes vegetables especially appealing.
- Perfect for many occasions: Serve these stuffed portobello mushrooms for dinner, lunch, or alongside your favorite main course.
- Naturally vegetarian: The recipe is meat-free and satisfying without feeling heavy.
Ingredients
- 4 large portobello mushroom caps
- 2 tablespoons olive oil
- 1 teaspoon minced garlic
- 1/2 cup finely chopped onion
- 2 cups fresh spinach
- 1/2 cup ricotta cheese
- 1/4 cup grated Parmesan cheese
- 1/2 cup shredded mozzarella cheese
- Salt, to taste
- Black pepper, to taste
- Nutmeg, to taste
Instructions
- Preheat the oven to 375°F (190°C) and line a baking sheet with parchment paper.
- Brush the portobello mushroom caps with olive oil and arrange them on the prepared baking sheet, gill-side up.
- Bake the mushrooms for about 10 minutes, allowing them to release excess moisture. Carefully drain away any liquid from the baking sheet.
- Meanwhile, heat a skillet over medium heat. Add the garlic and chopped onion and sauté for 3–4 minutes, or until softened.
- Add the fresh spinach and cook for 2–3 minutes, stirring occasionally, until wilted. Remove the skillet from the heat.
- In a mixing bowl, combine the spinach and onion mixture with the ricotta, Parmesan, salt, pepper, and a small pinch of nutmeg.
- Spoon the creamy filling evenly into the mushroom caps.
- Sprinkle the shredded mozzarella over the top of each mushroom.
- Return the mushrooms to the oven and bake for 15–20 minutes, or until the filling is hot and the mozzarella is bubbly and golden.
- Let the mushrooms rest for a few minutes before serving. Enjoy the Spinach and Cheese Stuffed Portobello Mushroom while warm.
Tips & Tricks
- Remove excess moisture: Pre-baking the mushrooms helps release some of their natural water, preventing the finished dish from becoming too watery.
- Drain the spinach: If your spinach releases a lot of liquid while cooking, let it cook off before mixing the filling.
- Use room-temperature ricotta: It combines more easily with the warm spinach mixture.
- Adjust the seasoning: Start with a small amount of nutmeg and add more only if desired.
- Try baby spinach: It wilts quickly and works especially well in the filling.
- Add herbs: Fresh parsley, basil, or a little dried Italian seasoning can complement the cheese and mushrooms.
- Make it extra cheesy: Add a little more mozzarella on top if you prefer a thicker, more golden cheese layer.
- Choose firm mushrooms: Look for large portobello caps that are firm and free from excessive bruising.
Details
- Prep Time: 15 minutes
- Cook Time: 25–30 minutes
- Total Time: 40–45 minutes
- Yield: 4 stuffed mushrooms
- Category: Main Dish, Side Dish
- Method: Baking
- Cuisine: American-inspired
- Difficulty: Easy
- Dietary Notes: Vegetarian
Notes
For a slightly lighter filling, use part-skim ricotta and mozzarella. You can also replace some of the spinach with finely chopped kale, although kale may need a little additional cooking time.
Serve these mushrooms with a crisp green salad, roasted vegetables, rice, quinoa, or crusty bread. They also make a lovely side dish for roasted chicken or grilled fish.
Nutrition
Approximate nutrition per stuffed mushroom:
- Calories: 190
- Protein: 10 g
- Carbohydrates: 9 g
- Fat: 13 g
Nutrition values are estimates and can vary depending on the brands and exact quantities of ingredients used.
FAQ
Can I make stuffed portobello mushrooms ahead of time?
Yes. Prepare the mushroom caps and filling several hours ahead, cover, and refrigerate. Add the mozzarella just before baking for the best texture.
How do I prevent stuffed mushrooms from becoming watery?
Pre-bake the mushroom caps and drain the liquid they release. Also cook the spinach until excess moisture has evaporated before adding it to the cheese mixture.
Can I use frozen spinach for this recipe?
Yes. Thaw the spinach completely and squeeze out as much excess water as possible before adding it to the filling.
What cheese works best for spinach stuffed mushrooms?
Ricotta provides creaminess, Parmesan adds savory depth, and mozzarella melts beautifully on top. Together, they create a rich and balanced filling.
Are these vegetarian stuffed mushrooms?
Yes. The recipe is vegetarian and contains no meat. For dietary needs, check that your cheeses are made with suitable ingredients.
What can I serve with cheesy portobello mushrooms?
They pair well with salads, roasted vegetables, grains, potatoes, or crusty bread. They can also be served as a satisfying light main dish.
Storage
Refrigerator: Allow leftovers to cool, then place them in an airtight container and refrigerate for up to 3 days.
Freezer: For best texture, freezing is not recommended because mushrooms and ricotta can release extra moisture after thawing. If necessary, freeze fully cooled stuffed mushrooms in a freezer-safe container for up to 1 month.
Reheating: Reheat refrigerated mushrooms in a 350°F (175°C) oven for approximately 10–15 minutes, or until heated through. An air fryer can also be used for a quick reheating option. Avoid prolonged microwaving, which can make the mushrooms softer and more watery.
Similar Recipes
Spinach and Cheese Stuffed Portobello Mushroom
Ingredients
- 4 large portobello mushroom caps
- 2 tablespoons olive oil
- 1 teaspoon minced garlic
- 1/2 cup finely chopped onion
- 2 cups fresh spinach
- 1/2 cup ricotta cheese
- 1/4 cup grated Parmesan cheese
- 1/2 cup shredded mozzarella cheese
- Salt to taste
- Black pepper to taste
- Nutmeg to taste
Instructions
- Preheat the oven to 375°F (190°C) and line a baking sheet with parchment paper.
- Brush the portobello mushroom caps with olive oil and arrange them on the prepared baking sheet, gill-side up.
- Bake the mushrooms for about 10 minutes, allowing them to release excess moisture. Carefully drain away any liquid from the baking sheet.
- Meanwhile, heat a skillet over medium heat. Add the garlic and chopped onion and sauté for 3–4 minutes, or until softened.
- Add the fresh spinach and cook for 2–3 minutes, stirring occasionally, until wilted. Remove the skillet from the heat.
- In a mixing bowl, combine the spinach and onion mixture with the ricotta, Parmesan, salt, pepper, and a small pinch of nutmeg.
- Spoon the creamy filling evenly into the mushroom caps.
- Sprinkle the shredded mozzarella over the top of each mushroom.
- Return the mushrooms to the oven and bake for 15–20 minutes, or until the filling is hot and the mozzarella is bubbly and golden.
- Let the mushrooms rest for a few minutes before serving. Enjoy the Spinach and Cheese Stuffed Portobello Mushroom while warm.
Notes
Conclusion
These Spinach and Cheese Stuffed Portobello Mushroom caps are proof that a simple vegetarian meal can still feel satisfying and comforting. The tender mushrooms, creamy spinach filling, and golden mozzarella topping come together with very little effort.
With easy preparation and everyday ingredients, this is a recipe you can confidently make for a weeknight dinner, a family meal, or a special vegetarian side dish.