Stuffed Portobello Mushrooms with Quinoa & Spinach

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Whether it’s a busy weeknight or a special gathering, this stuffed Portobello mushroom recipe fits the occasion. Filled with a savory mix of quinoa, spinach, and artichoke hearts, then baked to perfection, it’s a flavorful, satisfying meal that’s easy to make!

Stuffed Portobello mushrooms with quinoa and spinach are an easy, Mediterranean-inspired meal packed with bold flavors. Pomegranate molasses add a tangy sweetness, while Aleppo pepper brings a subtle heat. This dish is perfect for meal prep, quick weeknights, or impressing guests—all with minimal effort. Just a few simple steps, and you’ve got a wholesome, flavor-packed meal ready to enjoy!

Why I Love This Recipe

  • Ready in 30 minutes – Perfect for busy weeknights.
  • Great for meal prep – make ahead and enjoy all week.
  • Customizable – Swap ingredients to fit your taste.
  • Packed with flavor – Tangy pomegranate molasses & smoky Aleppo pepper.
  • Hearty yet light – Satisfying without feeling too heavy.

Stuffed Portobello Mushroom Ingredients

  • Portobello Mushrooms – Meaty and earthy, perfect for stuffing.
  • Chopped Artichoke Hearts – Mild, nutty, and tender for added richness.
  • Minced Garlic – Adds a savory, aromatic depth.
  • Ground Coriander – Warm, citrusy, and subtly nutty.
  • Aleppo Peppers – Brings a smoky, mild heat (substitute with red pepper flakes or smoked paprika).
  • Baby Spinach – Fresh, vibrant, and nutrient-packed.
  • Cooked Quinoa – Hearty, nutritious, and absorbs all the flavors.
  • Pomegranate Molasses – Adds tangy sweetness (substitute with balsamic glaze or a mix of honey & lemon juice).
  • Olive Oil, Red Wine Vinegar & Fresh Thyme – A bold, flavorful marinade that enhances the mushrooms.

Useful Tips for Stuffed Portobello Mushrooms

  • Cleaning the Mushrooms – Remove stems (save for stock or compost), then gently rinse or wipe with a damp paper towel to avoid breakage.
  • Quinoa Quantity – One cup of uncooked quinoa makes three cups cooked. For four mushrooms, use two cups of cooked quinoa and let it cool before mixing.
  • Pomegranate Molasses Substitute: For a similar tangy-sweet flavor, substitute balsamic vinegar. Adjust to taste, and skip red wine vinegar if needed.
  • Choosing Veggies: Soak, rinse, dry, and chop frozen artichoke hearts. Baby spinach is best, but regular works if chopped. Avoid frozen spinach unless it is well-drained. Try kale or Swiss chard for variety!

Serving Suggestions for Your Stuffed Mushrooms

Stuffed Portobello mushrooms are protein-packed and versatile, perfect for showcasing their natural mushroom flavor in various dishes. They can stand alone as a main course without any other sides. However, you could pair them with other dishes for a more substantial meal. You could serve them with braised lamb shanks for a comforting dinner or next to Mediterranean oven-baked chicken drumsticks.

Pair them with a refreshing summer zucchini or baby spinach and lentil salad for a lighter meal. The lemon zest and fresh thyme in the marinade and stuffing work together to create the perfect blend of flavors. Whatever you decide to serve with these stuffed Portobello mushrooms, make sure they are the show’s star!

How to Make Stuffed Portobello Mushrooms with Quinoa & Spinach

Preparation

1.
Start by prepping the mushrooms: remove the stems, scrape out the gills with a spoon, and gently wipe the caps with a damp paper towel.
Mark as complete
2.
Whisk together pomegranate molasses, olive oil, red wine vinegar, lemon zest, lemon juice, thyme, and salt. Brush over both sides of the mushrooms. Line a tray with thyme sprigs, place mushrooms cap-side down, and set aside.
Mark as complete
3.
Preheat the oven to 400°F. Heat olive oil in a sauté pan over high heat, then add chopped shallots and cook for 1 minute until softened. Stir in chopped artichoke hearts and minced garlic, sautéing for 2 more minutes.
Mark as complete
4.
Season with salt, coriander, and Aleppo pepper, stirring to combine. Add spinach and cook for 2 more minutes. Turn off the heat, then mix in lemon juice, lemon zest, and room-temperature quinoa. Stir well and adjust seasoning to taste.
Mark as complete
5.
Fill each mushroom with the stuffing and bake for 10-15 minutes until the tops are golden and the mushrooms are tender. Serve and enjoy!
Mark as complete

Ingredients:

1X 2X 3X
Adjust Servings
4 large portobello mushrooms
3 tablespoons pomegranate molasses
¼ cup olive oil
2 tablespoons red wine vinegar
Zest from one lemon and juice
1 teaspoon fresh thyme
¼ teaspoon salt
For the stuffing:
2 tablespoons olive oil
1 shallot (chopped small)
12 oz frozen artichoke heart (defrosted and chopped roughly)
2 cloves minced garlic
1 teaspoon salt
½ teaspoon coriander
½ teaspoon Aleppo peppers
cups packed baby spinach
Zest from one lemon and juice
2 cups cooked quinoa at room temperature

Preparation

1
Start by prepping the mushrooms: remove the stems, scrape out the gills with a spoon, and gently wipe the caps with a damp paper towel.
2
Whisk together pomegranate molasses, olive oil, red wine vinegar, lemon zest, lemon juice, thyme, and salt. Brush over both sides of the mushrooms. Line a tray with thyme sprigs, place mushrooms cap-side down, and set aside.
3
Preheat the oven to 400°F. Heat olive oil in a sauté pan over high heat, then add chopped shallots and cook for 1 minute until softened. Stir in chopped artichoke hearts and minced garlic, sautéing for 2 more minutes.
4
Season with salt, coriander, and Aleppo pepper, stirring to combine. Add spinach and cook for 2 more minutes. Turn off the heat, then mix in lemon juice, lemon zest, and room-temperature quinoa. Stir well and adjust seasoning to taste.
5
Fill each mushroom with the stuffing and bake for 10-15 minutes until the tops are golden and the mushrooms are tender. Serve and enjoy!

Recipe Tips & Suggestions

Storage:

To store the leftover stuffed Portobello mushrooms, let them cool down to room temperature, then place them in an airtight container or wrap them tightly with plastic wrap. Store the mushrooms in the refrigerator for up to 3-4 days.

Reheating:

To reheat the stuffed mushrooms, preheat the oven to 350°F. Remove the mushrooms from the fridge and let them come to room temperature for about 10-15 minutes. Place the mushrooms in a baking dish and cover them with foil. Bake the mushrooms for about 10-15 minutes or until heated through. Alternatively, you can reheat the mushrooms in the microwave on high for 1-2 minutes. Serve and enjoy!

Nutrition Information

The information shown is an estimate provided by an online nutrition calculator. It should should not be considered a substitute for a professional nutritionist's advice.
See our full nutrition disclosure here.

rana
By Rana

Thanks for visiting my Mediterranean food blog and welcome to my virtual kitchen! Here, you’ll find mouth-watering, wholesome, and nutritious Mediterranean recipes that will change the way you view cooking.

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