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By Taylor Stinson | 47 Comments | Posted: | Updated:
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These are the BEST EVER Stuffed Portobello Mushrooms! They’re super flavourful and packed with chicken, breadcrumbs, cheese and red pepper.
![The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (1) The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (1)](https://i0.wp.com/thegirlonbloor.com/wp-content/uploads/2019/06/Stuffed-Portobello-Mushrooms-10-790x1185.jpg)
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Ingredients and substitutions
- Olive oil – or another neutral cooking oil of your choice like canola or avocado oil.
- Portobello mushrooms – cremini mushrooms can be stuffed but they’re a lot smaller, so you’ll be getting bite-sized mushrooms instead of a meal-sized option.
- Chicken breasts – you could also use leftover cooked chicken or rotisserie chicken.
- Red pepper – swap out for any veggies of your choice like different color bell peppers, spinach, artichokes, kale, mushrooms, corn and more.
- Red onion – white or yellow onion can be used but will have a milder flavor.
- Egg – feel free to leave this out if you don’t have any on hand.
- Breadcrumbs – panko would also work.
- Garlic – freshly minced garlic is best but jarred minced garlic will work in a pinch.
- Salt & pepper – to taste.
- Fresh parsley – if you don’t have any fresh parsley, dried parsley can be used instead.
- Cheddar cheese – use any kind of cheese of your choice here like mozzarella cheese or even parmesan cheese.
![The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (3) The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (3)](https://i0.wp.com/thegirlonbloor.com/wp-content/uploads/2023/12/stuffed-portobello-mushrooms-ingredients-1300x974.jpg)
How to make stuffed portobello mushrooms
Step 1: Cook the chicken.
Bake the chicken in the oven, let it cool then shred or chop it into small pieces.
Step 2: Scrape out the mushrooms.
De-stem and scrape out the portobellos. Reserve the inside gills and throw out the stems.
Step 3: Make the filling.
Add the gills to a large bowl with the chicken, veggies, egg, breadcrumbs, garlic, parsley and half the cheese.
Step 4: Stuff the mushrooms.
Add the mixture to the portobello mushroom caps and top with the remaining cheese.
Step 5: Bake in the oven.
Bake until the mushrooms are cooked through and the cheese is melted.
Step 6: Serve and enjoy!
![The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (4) The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (4)](https://i0.wp.com/thegirlonbloor.com/wp-content/uploads/2019/06/Stuffed-Portobello-Mushrooms-3.jpg)
More stuffing ideas
This stuffed portobello mushroom recipe is super versatile! You can add pretty much any veggie or protein to the filling. Here are some more ideas:
- Sausage and mushroom stuffing
- Pizza stuffing
- Sausage and kale stuffing
- Taco stuffing
- Philly cheesesteak stuffing
- Vegetarian Tex Max stuffing
I would recommend keeping the breadcrumbs, cheese and eggs to maintain the texture, but they're technically optional.
Frequently Asked Questions
Should you remove the gills from portobello mushrooms before cooking?
Yes, you should very gently scrape out the mushroom gills and reserve them for the mushroom stuffing. Gently cut the stem, then start to scrape out the gills with a spoon. Try to be as gentle as possible because you can crack the mushroom cap and you don't want that to happen or the stuffing will spill out.
What do you serve on the side?
You can serve these stuffed portobello mushrooms with a nice green salad with homemade dressing, steamed veggies, garlic parmesan asparagus or brussels sprouts.
Can you make them low-carb or vegan?
The breadcrumbs are optional so you can definitely leave them out and just add your proteins and veggies to make these stuffed portobello mushrooms low carb. I would add a bit of extra meat and cheese if you’re adding in more veggies. If you want to make this recipe vegan, just leave out the meat and cheese – you could even add some cooked rice or quinoa to make it a more substantial meal.
What can you use instead of chicken?
You can swap out the chicken for any other protein of your choice like ground beef, sausage or steak. This recipe is super versatile, so feel free to mix and match with the stuffing!
Can you cook stuffed portobello mushrooms on the grill?
I personally haven't tried making these stuffed mushrooms on the grill, as they might fall apart. That being said, you can definitely give it a shot and try grilling them for 10-15 minutes on medium heat.
![The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (5) The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (5)](https://i0.wp.com/thegirlonbloor.com/wp-content/uploads/2019/06/Stuffed-Portobello-Mushrooms-5.jpg)
Storing and reheating
If you've made these stuffed portobello mushrooms for dinner and have leftovers, they can be stored in the fridge for up to 3 days. When you’re ready to enjoy, microwave them on high for 2 to 3 minutes. I recommend stirring the stuffing gently mid-way through the reheating time just to ensure even heating of the stuffing in the centre.
Can you freeze stuffed portobello mushrooms?
This stuffed portobello mushroom recipe is definitely freezer-friendly! Once the mushrooms have completely cooled, flash freeze them in a single layer on a baking sheet then transfer them to airtight containers or heavy-duty freezer bags. They’ll last in the fridge for up to 6 months, but may start to lose their texture slightly after 2 months. Let them defrost in the fridge overnight then reheat as normal.
![The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (6) The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (6)](https://i0.wp.com/thegirlonbloor.com/wp-content/uploads/2019/06/Stuffed-Portobello-Mushrooms-13-790x1185.jpg)
![The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (7) The BEST EVER Stuffed Portobello Mushrooms - The Girl on Bloor (7)](https://i0.wp.com/thegirlonbloor.com/wp-content/uploads/2024/01/Brown-Cream-Bold-Free-Download-Mockup-Instagram-Post-2.png)
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Meal Prep Tools
- Grab someglass meal prep bowls if you plan on turning this recipe into your weekly lunches.
- I get all my free-range chicken from Butcher Box, conveniently delivered to me frozen.
- Get a meat thermometer to make sure your chicken is cooked through.
- Freeze this recipe in glass microwave-safe bowls up to 3 months.
- **Get my full list of tools here**
The BEST EVER Stuffed Portobello Mushrooms
These are the BEST EVER Stuffed Portobello Mushrooms! They’re super flavourful and packed with chicken, breadcrumbs, cheese and red pepper.
4.82 from 107 votes
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Servings: 4 servings
Calories: 313kcal
Author: Taylor Stinson
Prep Time: 15 minutes minutes
Cook Time: 30 minutes minutes
Total Time: 40 minutes minutes
Ingredients
- 1 tbsp olive oil
- 4 medium-sized portobello mushrooms
- 2 chicken breasts (or 2 cups leftover cooked chicken)
- 1/2 red pepper, diced
- 1/2 red onion, diced
- 1 egg optional – just acts a binder, but the cheese will do that as well
- 1/4 cup breadcrumbs
- 2 cloves garlic, minced
- 1/2 tsp each salt & pepper
- 1/4 cup fresh parsley, chopped
- 1 cup shredded cheddar cheese, divided
Instructions
Preheat oven to 400 F. Add olive oil to chicken and season with salt & pepper. Bake for 15 minutes until chicken is just barely cooked through. Let cool then shred or chop into small pieces. Alternatively, cook chicken in a large pot of boiling water for 15 minutes, then shred chicken.
While chicken is cooking, de-stem and scrape out the portobellos, reserving inside mushroom gills and disposing of stems.
Add mushroom gills to a large bowl and toss with cooked chicken, red pepper, red onion, egg, breadcrumbs, garlic, salt & pepper, parsley and half the cheese. Change oven temperature to 375 F.
Add filling to mushroom caps then top with remaining cheese. Bake in oven for 18-20 minutes until mushroom caps are cooked through and cheese is melted. Serve and enjoy!
Video
Notes
Choose mushrooms that have whole, intact caps that feel very firm. They should have a smooth appearance with minimal discoloration or dry patches with clean gills.
Try out more stuffing ideas like sausage and mushroom, pizza or taco stuffing.
Cut down on prep time by cooking and shredding your chicken in advance.
Store the leftovers in the fridge for up to 3 days. Reheat in the microwave for 2-3 minutes.
Flash-freeze the mushrooms then freeze for 2-6 months. Defrost in the fridge then reheat as normal.
Nutrition
Calories: 313kcal (16%)Carbohydrates: 10g (3%)Protein: 35g (70%)Fat: 14g (22%)Saturated Fat: 7g (44%)Cholesterol: 142mg (47%)Sodium: 380mg (17%)Potassium: 831mg (24%)Fiber: 1g (4%)Sugar: 3g (3%)Vitamin A: 840IU (17%)Vitamin C: 21.4mg (26%)Calcium: 234mg (23%)Iron: 1.5mg (8%)
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Created by Taylor Stinson
Hey there, my name's Taylor! I’m the founder of The Girl on Bloor, a food blog where I share healthy meal prep recipes for busy people. I'm a busy city girl living in downtown Toronto on (you guessed it!) Bloor Street. I've got 10 years experience meal prepping, along with a Master's degree in journalism, and you can find my work across the internet featured on publications such as Buzzfeed, HuffPost, Women's Health, Reader's Digest and more. I also run the awesome 5-Day Meal Prep Challenge, which is a free email course and Facebook group where I share my meal planning strategies and easy meal prep tips and recipes. Be sure to check out my free beginner’s guide to meal prep and follow me on Facebook, YouTube and Instagram to get my latest recipes and meal prep tips!
Reader Interactions
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Did you make this recipe or want to share your thoughts? Make sure to leave your review below and tag me on Instagram #thegirlonbloor so I can check it out!
Susan Woods says
These were delicious! I didn’t have time to defrost the chicken so I subbed in mini grass fed beef meatballs and it worked well! Next time I’ll try the chicken.Reply
Taylor Stinson says
I’m so happy you enjoyed! Great idea for a substitute!
Reply
Renee Baranek says
It would have been helpful if you had posted the measurements of all of the ingredients.
Reply
Taylor Stinson says
They are there in the recipe card. There is a jump to recipe button at the top of the page.
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Jessica Y. says
I mean my 1st most honest reaction to tasting this was “WOW HEAVEN’S HAVING A DANCE PARTY IN MY MOUTH!” LOL It’s absolutely amazing!Reply
Taylor Stinson says
What an amazing review, thank you!! So glad you enjoyed 🙂
Reply
Kevin says
Where do you use the other half of the olive oil?
Reply
Taylor Stinson says
That is an error, you use the whole tbsp on the chicken. Sorry for the confusion!
Reply
4.82 from 107 votes (95 ratings without comment)
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