Stuffed Portobello Mushrooms

Updated April 26, 2024

Stuffed Portobello Mushrooms
Andrew Scrivani for The New York Times
Total Time
40 minutes
Cook Time
40 minutes active cook time
Rating
4(590)
Notes
Read community notes

Portobello mushrooms are a great option for a vegan or vegetarian main course, because they are large enough to fill a plate, and can be stuffed with a variety of flavors.

For reader Dianne Wenz of West Orange, small stuffed mushrooms were always a holiday side dish -- until the year she decided not to serve them.

"I didn't make them one year, thinking no one would notice, but my dinner guests were disappointed that they were missing from the holiday table,” said Ms. Wenz. “To make up for it, the following year I made jumbo portobellos stuffed with beans, spinach, and I made them the star attraction of the meal." —Tara Parker-Pope

Featured in: Vegetarian Thanksgiving: Stuffed Portobello Mushrooms

  • or to save this recipe.

  • Subscriber benefit: give recipes to anyone
    As a subscriber, you have 10 gift recipes to give each month. Anyone can view them - even nonsubscribers. Learn more.
  • Print Options


Advertisement


Ingredients

Yield:4 servings
  • 4large portobello mushrooms, stems removed
  • 4teaspoons olive oil, divided
  • 2teaspoons balsamic vinegar
  • ½teaspoon sea salt, divided
  • ½teaspoon black pepper, divided
  • 2medium-sized shallots, chopped
  • 2cloves garlic, minced
  • 1teaspoon fresh rosemary, chopped
  • 2cups spinach, chopped and tightly packed
  • ¼cup vegetable or mushroom broth
  • cups cooked cannellini beans
  • 2tablespoons flat-leaved parsley, chopped
  • 2tablespoons breadcrumbs, plus more if desired
  • 2tablespoons nutritional yeast, plus more if desired
Ingredient Substitution Guide
Nutritional analysis per serving (4 servings)

227 calories; 6 grams fat; 1 gram saturated fat; 0 grams trans fat; 3 grams monounsaturated fat; 1 gram polyunsaturated fat; 33 grams carbohydrates; 9 grams dietary fiber; 7 grams sugars; 15 grams protein; 297 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

Powered by

Preparation

  1. Step 1

    Preheat oven to 375 degrees Fahrenheit. Line a baking sheet with parchment paper and place the mushroom caps on it, upside down. Whisk together 3 teaspoons olive oil with the balsamic vinegar, ¼ teaspoon sea salt and ¼ teaspoon black pepper. Brush the mushrooms with the mixture and bake for 10 to 15 minutes, until tender.

  2. Step 2

    In a large skillet over medium-high heat, heat remaining olive oil and cook the shallots for 5 minutes, until beginning to brown. Add the garlic and rosemary and cook for another minute or two. Stir in the spinach and broth. Remove from heat as soon as the spinach begins to wilt.

  3. Step 3

    In a large bowl, mix together the shallot-spinach mixture, beans, parsley, breadcrumbs, nutritional yeast and the remaining sea salt and pepper. Divide the mixture among the mushrooms. Sprinkle the tops with some extra breadcrumbs and nutritional yeast for more crunch, if desired. Bake for another 10 to 15 minutes, until heated throughout. Serve hot.

Ratings

4 out of 5
590 user ratings
Your rating

or to rate this recipe.

Have you cooked this?

or to mark this recipe as cooked.

Private Notes

Leave a Private Note on this recipe and see it here.

Cooking Notes

Nutritional yeast adds a cheesy flavour to dishes. It's usually used to add cheese flavour to vegan dishes. Since there are no milk or egg ingredients in this recipe I'm assuming that's what it's for. If you don't have it already I would just add some parmesan or other grated cheese.

I made them as an appetizer using smaller mushroom caps and the were a big hit. Otherwise no modifications. Proof that there is no need for sausage or crab to satisfy your guests. I will definitely be making the entry style next time.

Does "upside down" mean with the gills up? Seems easier to "brush the mushrooms with the mixture" if it means domed side up.

Rookie question: "place the mushroom caps on it, upside down"--what is upside down here? Gills down on sheet or up in the air?

I just want to make sure before trying the recipe. Is the spinach chopped and tightly packed enough to fill 2 cups (2 cups chopped and tightly packed spinach) or is it 2 cups of spinach that are then chopped and tightly packed as called for in the recipe (2 cups spinach, chopped and tightly packed)? It does make a difference.

I've never used it myself and wondered the same thing. Wikipedia has a couple statements that might help: (1) "It is a significant source of some B-complex vitamins, and contains trace amounts of several other vitamins and minerals. Sometimes nutritional yeast is fortified with vitamin B12," and (2) "Nutritional yeast has a strong flavor that is described as nutty, cheesy, or creamy." This helps give an idea of what's missing (or what to replace) if not using it.

Infinite possibilities for creativity here. I added chopped prosciutto to the shallots/garlic/rosemary mixture and let it sizzle for a minute or two. It gave the finished dish a little more depth.

Delicious! I omitted the nutritional yeast and used about a half cup of bread crumbs which were crushed up homemade seasoned croutons. I topped them with shredded gruyere cheese the last five minutes of baking.

I think 'upside down' is gills up.

If you cook the mushrooms first, liquid will pool in the mushrooms and that can be drained out and used for the liquid in the spinach mixture. It is delicious. I also used thyme instead of rosemary the second time I made it and liked it. A little parmesan on top is really good too.

Not necessary.

Made this tonight as a trial run for a vegetarian thanksgiving. It’s delicious! I added the mushroom stems to the filling as not to waste them. I also added extra bread crumbs and nutritional yeast as a crunchy top. We loved it and will make it as our main dish on thanksgiving with some mashed potatoes and roasted veggies.

Made this for dinner this evening, with a few modifications. I halved the recipe, used thyme instead of rosemary and omitted the yeast. I also added a topping of panko, grated parm and a dab of olive oil. It was excellent. I'll definitely be making this again!

Added: goat cheese, diced zuccini and sun dried tomatoes to the mixture and balsamic glaze on top Substituted: the beans for quinoa and doubled the rosemary for a more bold flavor

Tasteless. Admittedly I chose to make it without the breadcrumbs but it was really not pleasant. And the topping turned out too watery. Added a spicy chilli-garlic sauce and it was a bit better. I did like the taste of the nutritional yeast though.

I wish I had read the notes before I started cooking. I now believe that "upside down" means gills up, but I did not think that when I set out to make this recipe. So, I would not call what I made "stuffed" rather, "piled on top." Next time, gills up. Otherwise, tasty. I sprinkled parmesan cheese on top which, reading the notes, was a good substitute for the nutritional yeast I don't have.

I made this for just the two of us; my mushrooms were smaller than some portobellos I’ve seen. I had some leek to use up, so I used leek sliced thinly and some chopped red onion in lieu of shallots. Canned beans, but otherwise followed recipe and it was delicious! Came together pretty quickly.

Crumble up some Spam and include it with the stuffing -- wonderful stuff.

I didn’t have white beans or rosemary so I subbed lentils and mint. Seasoned the lentil water. I toasted and seasoned the breadcrumbs. And I added in lemon zest and red wine vinegar to the filling. I could eat this filling as a spread with crackers or pita chips, it’s so good.

I followed step one and then improved the rest a bit, as I was planning to use a rice-spinach mixture w/o beans, nutritional yeast, parsley, or shallots (subbed white onion). Diced the stems and included an umami blend when sauteeing the (doubled) spinach in my dutch oven; mixed all in the dutch oven, then stuffed and topped with breadcrumbs and grated parm. Hubs loved, and I have to say this is rather easy, delicious, and satisfying for a weeknight dinner for two!

W'mushrooms up-side-down is the opposite of the way they GROW!

My second time fixing these - we love them! I pretty much followed the recipe. I took the gills off with a spoon and baked them gill side up. I also chopped up the stems and added this to the shallots as they were cooking. The first time I had fresh Rosemary and dried parsley - the second time fresh parsley and dried herbed de Provence. Delicious both times!!!!

This was good, not great. Super easy to pull together, though, and it could be the base of a really delish dish. I think next time some more herbs and maybe I'll add some dairy (goat cheese) for a tart play on it.

Can any of this be made ahead of time?

I make the whole thing ahead sometimes and warm up then give them a quick broil to crisp up the top

Used red lentils instead of beans--OK. Frozen chopped spinach.

A few tips to make this tastier, building on other's notes, and less to clean:add a grated garlic clove to the vinaigrette to top the mushrooms;use a 12" frying pan and add a good dollop of tomato paste to the garlic/shallot mix, cook a bit, then mix in the beans thoroughly and cook a few minutes, add strips of prosciutto, add the spinach and rest of ingredients - no need to dirty a bowl;) quite delicious even without nutritional yeast.

Perfect template for a work-with what you have meal. I imagine it would be delicious as written - but also great working with what I could scrounge up in my veggie drawer. Roasted some asparagus, peppers, onions, then added them to the sautee. Swapped various things for shallots and parsley. The cannellini, rosemary and mushrooms are lovely together. And the nutritional yeast makes it next level...

Tim says ok not to peel, but he always de-gills with a spoon.

Private notes are only visible to you.

Credits

Dianne Wenz

Advertisement

or to save this recipe.