Stuffed Portobello Mushrooms with Spinach, Quinoa & Cheese
Imagine sinking your teeth into a hearty mushroom cap filled with a delightful mix of spinach and quinoa. This dish is not only visually appealing but also packed with flavor, making it a perfect choice for a light dinner or appetizer.

Ingredients
- 4 large portobello mushrooms, stems removed
- 1 cup cooked quinoa
- 2 cups fresh spinach, chopped
- 2 cloves garlic, minced
- 1/2 cup grated Parmesan cheese (optional)
- 1/4 cup chopped fresh parsley
- 2 tablespoons olive oil
- Salt and pepper to taste
- 1/2 teaspoon red pepper flakes (optional)
Instructions
- Preheat the Oven: Preheat your oven to 375°F (190°C).
- Prepare the Mushrooms: Clean the portobello mushrooms with a damp cloth and remove the stems. Place them, gill side up, on a baking sheet.
- Sauté Spinach and Garlic: In a large skillet, heat olive oil over medium heat. Add minced garlic and sauté for 1 minute until fragrant. Add chopped spinach and cook until wilted. Season with salt, pepper, and red pepper flakes if using.
- Mix the Filling: In a bowl, combine cooked quinoa, sautéed spinach and garlic, parsley, and half of the Parmesan cheese. Mix well until combined.
- Stuff the Mushrooms: Spoon the filling evenly into each portobello mushroom cap. Top with the remaining Parmesan cheese if desired.
- Bake: Bake in the preheated oven for 20-25 minutes, or until the mushrooms are tender and the tops are golden brown.
- Serve: Remove from the oven and let cool slightly before serving. Enjoy warm!
Cook’s tips
- Clean the mushrooms with a damp cloth instead of washing them under water to prevent them from becoming soggy.
- Make sure the quinoa is fully cooked and fluffed before mixing it into the filling for the best texture.
- For extra flavor, add a splash of balsamic vinegar or a squeeze of lemon juice to the filling.
- If you like a crispy top, broil the mushrooms for the last 2 minutes of baking.
Substitutions
- Use baby bella mushrooms instead of portobello for smaller portions.
- Replace quinoa with couscous or cooked rice for a different grain.
- Swap Parmesan for feta or goat cheese for a tangier flavor.
- Substitute spinach with kale or Swiss chard if desired.
Storage & reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F for about 10 minutes, or in the microwave until warmed through.
Frequently asked questions
Can I make these stuffed mushrooms ahead of time?
Yes, you can prepare the filling and stuff the mushrooms up to a day in advance. Store them in the refrigerator, then bake just before serving.
Can I use frozen spinach instead of fresh?
Absolutely. Thaw and squeeze out excess water from frozen spinach before using. You may need to adjust the cooking time slightly.
What can I serve with these stuffed mushrooms?
They pair well with a side salad, roasted vegetables, or a grain dish. They also make a great appetizer on their own.
How do I prevent the mushrooms from becoming watery?
Make sure to remove the stems and scrape out the gills with a spoon. Also, avoid overcooking and let them rest a few minutes before serving.



