Vegetarian Stuffed Portobello Mushrooms

Featured in: Main Dishes

Large portobello mushrooms are filled with a savory combination of sautéed spinach, ricotta, mozzarella, and breadcrumbs. The mixture is spooned into the mushroom caps, which are then baked until golden and bubbling. This vegetarian dish offers rich umami flavors and a satisfying, hearty texture. Serve as a flavorful main course or an impressive side for any occasion.

Updated on Mon, 28 Jul 2025 18:35:06 GMT
A plate of food with mushrooms and cheese. Save
A plate of food with mushrooms and cheese. | cheerfulchefs.com

Vegetarian stuffed portobello mushrooms make any weeknight feel a bit more special These hearty mushrooms are filled with a savory blend of spinach and creamy cheeses then topped with crisp breadcrumbs

The first time I made these was for my sister who is a picky eater She raved about how meaty and flavorful the mushrooms tasted and now they are one of her most requested dishes

Ingredients

  • Portobello mushrooms: Choose large firm caps with no soft spots they hold the stuffing well
  • Spinach: Fresh baby spinach adds color and nutrients opt for crisp vibrant leaves and chop finely for even distribution
  • Ricotta cheese: Delivers rich creaminess look for whole milk ricotta for the best texture
  • Shredded mozzarella: Melts into gooey perfection I grate it myself from a block for extra melt
  • Breadcrumbs: Bring that crisp top choose panko for more crunch or fine Italian for a classic bite
  • Garlic: Use fresh cloves for the deepest flavor mince just before using so it stays potent
  • Olive oil: Helps everything brown and taste richer use extra virgin for depth
  • Salt and pepper: Brings balance be generous but taste as you go

Instructions

Prep the Mushrooms:
Wipe any dirt from the mushroom caps with a damp towel Gently remove the stems and use a spoon to scrape out the gills This step helps the stuffing fit neatly and prevents excess liquid
Cook Spinach and Garlic:
Pour a swirl of olive oil into a large skillet Warm over medium heat till shimmering Add minced garlic and cook until fragrant about thirty seconds Stir in chopped spinach and toss until wilted about three minutes Season lightly with salt and let cool slightly
Mix the Filling:
In a mixing bowl combine spinach mixture ricotta cheese mozzarella and half the breadcrumbs Stir until evenly blended Taste and adjust the seasoning if needed
Stuff the Mushrooms:
Brush both sides of the caps with olive oil and sprinkle with salt and pepper Spoon the filling into each mushroom pressing gently to fill all the space Top with remaining breadcrumbs
Bake:
Arrange the stuffed mushrooms stuffing side up on a baking sheet lined with parchment paper Bake in the preheated oven for twenty to twenty five minutes until the tops are golden and mushrooms are tender Watch closely so the breadcrumbs get crisp but not burnt
Let Rest and Serve:
Allow mushrooms to cool for five minutes before serving This helps the filling set and makes them easier to eat Sprinkle on a pinch more salt or fresh herbs if you like
A fork is being used to eat a food item. Save
A fork is being used to eat a food item. | cheerfulchefs.com

My favorite ingredient is ricotta because it melts so smoothly and adds the creamiest texture I always remember serving these at my mom’s birthday dinner when even the die hard meat eaters went back for seconds

Storage Tips

Leftover mushrooms store well in an airtight container for up to three days in the fridge To reheat bake in a low oven until warmed through Microwaving works too but the topping stays crispier in the oven

Ingredient Substitutions

No ricotta Swap in cottage cheese or soft goat cheese Gluten free breadcrumb options keep it safe for all guests I love sneaking in some sautéed onions or chopped artichokes for extra flavor

Serving Suggestions

Serve these with a crisp green salad or roasted potatoes They pair well with a simple tomato soup or even as a savory brunch option topped with a fried egg

Cultural or Historical Context

Portobello mushrooms are prized for their savory flavor and meaty texture making them a classic vegetarian favorite Stuffed mushroom dishes have roots in both Italian and American kitchens dating back decades where home cooks would use whatever greens and cheese were on hand

Seasonal Adaptations

Use kale or Swiss chard instead of spinach in the colder months Stir in sun dried tomatoes for a summery twist In spring fresh peas or asparagus bits make the filling pop

Success Stories

One friend told me she made a double batch for her book club and not a single crumb was left I hear from people who have made these for family holidays and the compliments never stop

Freezer Meal Conversion

You can prepare the mushrooms up to the baking step then freeze them in a single layer once solid transfer to freezer bags Bake from frozen at three hundred fifty degrees until heated through Usually adds ten to fifteen minutes to the cooking time

A plate of food with mushrooms and cheese. Save
A plate of food with mushrooms and cheese. | cheerfulchefs.com

These stuffed mushrooms are so adaptable and always impress guests With a few simple tips you can make them perfectly every time

Recipe FAQs

How do you prepare portobello mushrooms for stuffing?

Gently clean mushrooms with a damp cloth, remove stems, and scoop out gills for more space.

Can I use a different cheese instead of ricotta?

Yes, cottage cheese or goat cheese are good alternatives to ricotta in the filling.

What is the best way to keep stuffed mushrooms from getting soggy?

Lightly brush with olive oil and bake on a wire rack to allow moisture to escape.

Are these suitable for meal prep?

Yes, prepare in advance and bake before serving for the freshest flavor and texture.

Can I freeze stuffed portobello mushrooms?

They can be frozen before baking. Thaw and then bake as directed for best results.

Vegetarian Stuffed Portobello Mushrooms

Portobello mushrooms filled with spinach, cheese, and breadcrumbs, baked to a golden finish.

Prep Time
15 minutes
Cook Time
25 minutes
Overall Time
40 minutes
Creator Ruby Smiles

Recipe Type Main Dishes

Skill Level Easy

Cuisine Background Vegetarian American

Portions 4 Serves

Dietary Preferences Vegetarian-Friendly

What You’ll Need

Produce

01 4 large portobello mushrooms, stems removed and wiped clean
02 2 cups fresh spinach, chopped
03 2 cloves garlic, minced

Dairy

01 1/2 cup ricotta cheese
02 1/2 cup shredded mozzarella cheese

Pantry

01 1/4 cup breadcrumbs
02 Olive oil, for drizzling
03 Salt, to taste
04 Black pepper, to taste

Step-by-Step Guide

Step 01

Prepare the Oven: Preheat oven to 375°F (190°C). Position a rack in the center.

Step 02

Sauté Spinach and Garlic: Heat a drizzle of olive oil in a medium skillet over medium heat. Add minced garlic and sauté for 30 seconds until fragrant. Stir in chopped spinach and cook until wilted, about 2 minutes. Remove from heat and allow to cool slightly.

Step 03

Combine Filling Ingredients: In a medium mixing bowl, combine sautéed spinach mixture, ricotta cheese, shredded mozzarella, and breadcrumbs. Season with salt and black pepper, stirring until thoroughly incorporated.

Step 04

Stuff the Mushrooms: Arrange portobello mushroom caps, gill side up, on a parchment-lined baking sheet. Evenly distribute the spinach filling among the mushroom caps, pressing the mixture gently for stability. Drizzle additional olive oil over the tops.

Step 05

Bake: Transfer baking sheet to the preheated oven. Bake for 20 to 25 minutes, or until the mushrooms are tender and the filling is lightly golden.

Step 06

Serve: Remove from oven and allow mushrooms to rest for 3 minutes before serving warm.

Tools You’ll Need

  • Oven
  • Baking sheet
  • Parchment paper
  • Mixing bowl
  • Skillet
  • Spatula

Potential Allergens

Inspect ingredients for specific allergens and contact a professional for concerns.
  • Contains milk (ricotta, mozzarella cheese)
  • Contains wheat (breadcrumbs)

Nutritional Details (Per Serving)

Provided as supportive info; always cross-check with your healthcare provider.
  • Calories: 175
  • Fats: 10.5 grams
  • Carbohydrates: 12 grams
  • Proteins: 9 grams