You won’t want to miss these vegetarian stuffed portobello mushrooms, overflowing with a creamy blend of three cheeses and crowned with crisp savory breadcrumbs.

Overhead view of stuffed mushrooms on a baking sheet, garnished with sun dried tomatoes and fresh basil.

Looking for a wonderful meatless main dish? Look no further. Mushrooms feel meaty so they satisfy the carnivores in your family — just hand them a steak knife and watch them dig in. Actually, I do have a couple of recipes for meat-stuffed mushrooms. Try Coq Au Vin Stuffed Mushrooms or Chicken Parmesan Stuffed Portobello Mushrooms.

But today, we have vegetarian stuffed portobellos and boy, are they good! Melty, creamy cheese, with little zippy bites of sun-dried tomatoes mixed in, and crisp buttery garlicky bread crumbs, oh, yes, I’ll take these any day. You’re gonna love them!

About this mushroom recipe

There are three easy steps to this recipe:

  1. Prepping the mushrooms so they’re ready to stuff
  2. Mixing up the creamy filling and spooning it into the mushroom caps
  3. Making the breadcrumb topping

Allow yourself about twenty minutes for prep and another fifteen minutes oven time.

As always, you’ll find the complete printable recipe at the end of this post.

Stuffed mushroom, cut open to show filling contents.

What you need

  • Portobello Mushrooms: You’ll need four mushrooms, large enough to hold lots of the luscious filling. Want to make six servings instead? That would be fine, too. Alternatively, you could fill several small mushrooms for a great appetizer.
  • Olive Oil: A light coating of olive oil keeps the outsides of the mushrooms from drying out. Season with salt and pepper.
  • Sun-Dried Tomatoes: I like the tomatoes that aren’t packed in oil. Chopped finely, they add tangy flavor and little chewy bits, a nice jazzy contrast to the creamy stuffing.
  • Lots of Cheese! Creamy ricotta, gooey mozzarella, and flavorful Parmesan — the perfect trio for these stuffed mushrooms.
  • Fresh Chopped Basil: Don’t you just love the sharp aroma of fresh basil?
  • Bread Crumb Topping: These stuffed mushrooms boast a crispy panko crown, with melted butter, garlic, parsley, and oregano.
Two portobello mushrooms on wooden surface, one mushroom flipped upside down to show gills.

How to make it

First, prepare the mushrooms. Brush them clean, scrape out the gills, and twist off the stem.

Gills being scraped out of a portobello mushroom. 3 others not yet done.

Lightly brush the outsides with olive oil, and season the insides with salt and pepper.

Mushroom being brushed with oil.

Next, stir together the three cheeses, finely chopped sun-dried tomatoes, and fresh basil.

Filling ingredients in a glass mixing bowl.

Spoon the filling into the mushroom caps.

Filling being placed in mushrooms.

Okay, last step — the topping. In a small skillet, melt butter. Add minced garlic and cook briefly. Add the panko and Italian seasonings. Crown the mushrooms with this savory topping.

Breadcrumbs being spooned onto stuffed portobello mushrooms.

Pop the pan into the oven and bake. It will take about fifteen minutes for the cheese to get melty and the topping to brown. So yummy!

Stuffed mushrooms on a metal baking sheet, with parsley in background.

What to serve with stuffed portobello mushrooms

Vegetarian stuffed portobello mushrooms are a healthy meatless main dish. Serve them with a fresh green salad like this classic arugula salad or tomato cucumber salad.

Stuffed mushrooms also are a filling side dish, perfect with air fryer salmon, easy baked salmon with lemon and chives or this bruschetta chicken.

Stuffed portobello mushrooms have a meaty texture and robust flavor, almost like a steak. Accordingly, choose the same wine you would serve with a steak. Try a fruity Zinfandel or Cabernet Sauvignon. A full-bodied craft beer is good, too, like stout or brown ale.

Overhead view of a cooked mushroom with filling and golden brown breadcrumb topping.

FAQ

Should I clean portobello mushrooms?

Yes, mushrooms can be brushed clean. Use a soft brush or damp paper towel to clean off the remnants of dirt. Alternatively, give the mushrooms a quick rinse in a colander. Once mushrooms are washed, use them immediately.

How do you make portobello mushrooms not soggy?

This relates to cleaning the mushrooms. Never soak mushrooms in water because they are like sponges and will absorb lots of water, making them soggy.

Can you eat the gills of a portobello mushroom?

The gills are totally edible but sort of unsightly, especially in portobello mushrooms. They tend to turn the filling dark and make it more watery. Besides, if you remove them, there’s a lot more room for filling which tastes way better than mushroom gills!

How can you tell if a mushroom is bad?

If you’re wondering if a mushroom has spoiled, take a look at the outside. If there are lots of dark spots and the surface is sticky or slimy, chances are your mushrooms are too far gone. Throw them in your compost pile.
If you’re wondering if a wild mushroom is bad to eat, I would say never go foraging for mushrooms in the woods unless you’re with an expert. Don’t take a chance!

How to make these stuffed mushrooms your own

  • Add finely chopped spinach or onion to the filling.
  • Change up the cheese. Instead of mozzarella and Parmesan, try Swiss or Gruyere.
  • Add a little taco seasoning to the filling (omit the basil and oregano), and use a Mexican cheese blend.
Overhead view of 4 portobello mushrooms on a baking sheet, filled with stuffing and baked.

Make Ahead Ideas

To get a head start on this meal, mix up the filling and prepare the breadcrumb topping the night before. Refrigerate both until you’re ready to stuff the mushrooms. You’ll need to add a few minutes to the baking time.

Storage & Reheating Suggestions

Lucky you, leftover mushrooms! Refrigerate up to three days, tightly wrapped. To reheat, put the mushrooms on a baking sheet and into a preheated oven (400°F) for ten minutes or until heated through.

More mushroom recipes

If you love these “fun guys” as much as we do, be sure to try more of these great recipes:

Portobello mushroom stuffed with cheese, sun dried tomatoes, and topped with crispy breadcrumbs.

Vegetarian Stuffed Portobello Mushrooms

Yield: 4 servings
Prep Time: 20 minutes
Cook Time: 15 minutes
Total Time: 35 minutes

Vegetarian stuffed portobello mushrooms, overflowing with a creamy blend of three cheeses and crowned with crisp savory breadcrumbs.

Ingredients

  • 4 portobello mushrooms, brushed or wiped clean
  • 1 tablespoon olive oil
  • 1/4 teaspoon kosher salt
  • 1/4 teaspoon coarse ground black pepper

Filling

  • 1 cup part-skim ricotta cheese
  • ½ cup roughly chopped sun-dried tomatoes
  • 1/4 cup part-skim shredded mozzarella cheese
  • 1/4 cup grated Parmesan cheese
  • 1/4 cup chopped fresh basil
  • ⅛ teaspoon coarse ground black pepper

Bread crumb topping:

  • 1 tablespoon unsalted butter
  • 2 cloves garlic, finely minced
  • ½ cup panko breadcrumbs
  • 1/4 cup finely chopped fresh parsley
  • 1/2 teaspoon dried oregano
  • ⅛ teaspoon kosher salt

Instructions

  1. Preheat oven to 400°F.
  2. Scrape black gills out of mushrooms with a spoon and remove stem. 
  3. Brush outsides (tops) of mushroom caps lightly with olive oil. Place mushrooms on a parchment paper lined baking sheet, gill side up;  sprinkle with ¼ teaspoon salt and ¼ teaspoon pepper. 
  4. In a small bowl, mix together ricotta, tomatoes, mozzarella, Parmesan, basil, and ⅛ teaspoon black pepper. Fill mushroom caps with cheese mixture.
  5. In a small skillet over medium heat, melt butter. Add garlic, stirring constantly for one minute. Remove from heat. Stir in panko, parsley, oregano, and salt until combined.
  6. Spread panko mixture evenly over cheese filling.
  7. Bake mushrooms in the preheated oven until tender and cheese is melted, about 15-17 minutes.

Notes

  • Prep-Ahead: Mix up the filling and prepare the breadcrumb topping the night before. Refrigerate both until you're ready to stuff the mushrooms. Plan to add a few minutes to the baking time.
  • Storage & Reheating Suggestions: Refrigerate leftovers up to three days, tightly wrapped. To reheat, put the mushrooms on a baking sheet and into a preheated oven (400°F) for ten minutes or until heated through.
Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 274Total Fat: 15gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 36mgSodium: 521mgCarbohydrates: 21gFiber: 3gSugar: 5gProtein: 15g

RachelCooks.com sometimes provides nutritional information, but these figures should be considered estimates, as they are not calculated by a registered dietitian. Please consult a medical professional for any specific nutrition, diet, or allergy advice.

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