Quinoa Stuffed Portobello Mushrooms
If you’re on the hunt for a delightful dish that’s both visually stunning and packed with flavor, look no further than these Quinoa Stuffed Portobello Mushrooms. Perfectly meaty Portobello caps cradle a savory mixture of quinoa, fresh tomatoes, and herbs, creating a satisfying meal that’s as nutritious as it is delicious. Whether you’re serving them at a cozy family dinner or showcasing them at a potluck, these stuffed mushrooms are guaranteed to be a hit.
Why This Recipe Belongs in Your Rotation

Quinoa Stuffed Portobello Mushrooms are not just another vegetarian dish; they are a celebration of flavors and textures. Each mushroom cap is filled with a hearty blend of quinoa, fresh vegetables, and creamy feta, making them a wholesome option for lunch or dinner. They’re gluten-free, easy to prepare, and can be customized according to your tastes. Plus, they’re an excellent way to incorporate more plant-based meals into your week without sacrificing flavor or satisfaction.
Ingredient Rundown
- 1/3 cup quinoa, dry, pre-rinsed: The star of the dish, quinoa is a complete protein and adds a nutty flavor.
- 2/3 cup water: Used to cook the quinoa.
- 4 large Portobello mushrooms: These sturdy caps serve as the vessel for our delicious filling.
- 1 tablespoon olive oil: Adds richness and helps in roasting the mushrooms.
- 2 tablespoons balsamic vinegar: Provides a tangy depth of flavor.
- 1/2 teaspoon black pepper: For seasoning.
- 1/4 teaspoon crushed red pepper flakes: Adds a hint of heat.
- Kosher or sea salt: To taste, enhancing all the flavors.
- 1 cup vine-ripe tomatoes, diced: Freshness and juiciness that brightens the dish.
- 1/2 cup whole-grain bread crumbs: Adds texture to the filling.
- 1/4 cup freshly chopped basil: A burst of herbal flavor.
- 1/2 cup fat-free feta cheese: Creamy and tangy, it complements the filling beautifully.
Equipment Breakdown
- Medium pot: For cooking the quinoa.
- Baking dish: To roast the stuffed mushrooms.
- Mixing bowl: For combining the filling ingredients.
- Cooking spoon: To mix the stuffing.
- Oven: To bake the mushrooms until perfectly tender.
Quinoa Stuffed Portobello Mushrooms: Step-by-Step Guide

Step 1: Prepare the Quinoa
In a medium pot, combine the quinoa and water. Bring to a boil, then reduce the heat to low, cover, and simmer for about 15 minutes or until the quinoa is fluffy and water is absorbed. Remove from heat and let it sit covered for 5 minutes, then fluff with a fork.
Step 2: Preheat the Oven
Preheat your oven to 375°F (190°C). This temperature will help the mushrooms cook evenly while allowing the filling to develop its flavors.
Step 3: Prepare the Portobello Caps
While the quinoa is cooking, clean the Portobello mushrooms with a damp paper towel to remove any dirt. Carefully remove the stems and gills using a spoon to create space for the filling.
Step 4: Make the Filling
In a mixing bowl, combine the cooked quinoa, diced tomatoes, bread crumbs, chopped basil, and feta cheese. Drizzle with olive oil and balsamic vinegar, then sprinkle with black pepper, crushed red pepper flakes, and salt. Mix well until all ingredients are evenly combined.
Step 5: Stuff the Mushrooms
Place the Portobello caps in a baking dish, gill side up. Generously fill each cap with the quinoa mixture, pressing down gently to pack it in.
Step 6: Bake the Mushrooms
Drizzle any remaining olive oil over the stuffed mushrooms. Bake in the preheated oven for 25-30 minutes, or until the mushrooms are tender and the tops are golden brown.
Step 7: Serve and Enjoy
Once baked, remove the mushrooms from the oven and allow them to cool for a few minutes. Serve warm as a delightful main dish or a hearty side. Enjoy the explosion of flavors!
Seasonal Ingredient Swaps

- Spinach or Kale: Substitute for basil for a different green flavor.
- Cherry Tomatoes: Use halved cherry tomatoes instead of diced vine-ripe tomatoes for a sweeter touch.
- Parmesan Cheese: Swap feta for shredded Parmesan if you prefer a different cheese profile.
- Bell Peppers: Add diced bell peppers for extra crunch and sweetness.
Watch Outs & How to Fix
When working with Portobello mushrooms, be cautious not to overcook them, as they can become mushy. If you find your filling is too dry, add a splash of vegetable broth or water to moisten it. Conversely, if the mixture is too wet, you can add more bread crumbs to absorb excess moisture.
- Ensure the mushrooms are cleaned properly to avoid any grit in your dish.
- Adjust the seasoning to your taste; don’t be afraid to add more herbs or spices!
Save for Later: Storage Tips
These Quinoa Stuffed Portobello Mushrooms can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply place them in a preheated oven at 350°F (175°C) for about 10-15 minutes until warmed through. You can also freeze the stuffed mushrooms before baking. Wrap each one tightly and store in a freezer bag for up to 2 months. When ready to enjoy, just bake from frozen, adding a few extra minutes to the cooking time.
Handy Q&A
Can I use other types of mushrooms for this recipe?
Yes, you can use other types of mushrooms such as large portobello or even caps of cremini mushrooms if you prefer. Just adjust the cooking time accordingly, as smaller mushrooms will cook faster.
Is quinoa hard to cook?
No, quinoa is quite easy to cook! Just remember to rinse it before cooking to remove the natural coating called saponin, which can give it a bitter taste. Use a ratio of 1 part quinoa to 2 parts water for best results.
Can I make this dish ahead of time?
Definitely! You can prepare the filling a day in advance and store it in the refrigerator. Stuff the mushrooms just before baking to keep them fresh and delicious.
What can I serve with these stuffed mushrooms?
These Quinoa Stuffed Portobello Mushrooms pair wonderfully with a side salad, roasted vegetables, or even a grain-based salad like tabbouleh or farro salad for a complete meal.
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Final Thoughts
Quinoa Stuffed Portobello Mushrooms are more than just a meal; they’re a delightful way to explore flavors and ingredients that nourish both the body and soul. The combination of textures from the hearty mushrooms and the fluffy quinoa filling creates a satisfying dish that you can feel good about serving to your loved ones. So roll up your sleeves and get ready to impress with this easy-to-make, deliciously wholesome recipe!

Quinoa Stuffed Portobello Mushrooms
Ingredients
Equipment
Method
- In a medium pot, combine the quinoa and water. Bring to a boil, then reduce the heat to low, cover, and simmer for about 15 minutes or until the quinoa is fluffy and water is absorbed. Remove from heat and let it sit covered for 5 minutes, then fluff with a fork.
- Preheat your oven to 375°F (190°C).
- While the quinoa is cooking, clean the Portobello mushrooms with a damp paper towel to remove any dirt. Carefully remove the stems and gills using a spoon to create space for the filling.
- In a mixing bowl, combine the cooked quinoa, diced tomatoes, bread crumbs, chopped basil, and feta cheese. Drizzle with olive oil and balsamic vinegar, then sprinkle with black pepper, crushed red pepper flakes, and salt. Mix well until all ingredients are evenly combined.
- Place the Portobello caps in a baking dish, gill side up. Generously fill each cap with the quinoa mixture, pressing down gently to pack it in.
- Drizzle any remaining olive oil over the stuffed mushrooms. Bake in the preheated oven for 25-30 minutes, or until the mushrooms are tender and the tops are golden brown.
- Once baked, remove the mushrooms from the oven and allow them to cool for a few minutes. Serve warm and enjoy!
Notes
- Ensure the mushrooms are cleaned properly to avoid any grit in your dish.
- Adjust the seasoning to your taste; don’t be afraid to add more herbs or spices!
- These mushrooms can be stored in an airtight container in the refrigerator for up to 3 days.
