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Grilled Portobello Mushroom Sandwich Recipe

Updated on June 25, 2012

Lately, I've been hearing a lot of rumors surrounding the great portobello mushroom. Ah, something along the lines of potobellos being a thing of the 90's. There's just no way! These mature mushrooms can easily be incorporated into modern cuisine, and this grilled portobello mushroom sandwich recipe is proof to it. To keep the dish lively and fresh, basil leaves are stuffed into the flesh of the mushrooms. Seasoned and grilled to perfection, these mushrooms are then finished with Parmesan crumbles to complete the package. Best of all, your mushroom won't make your bun soggy! It's truly a mushroom sandwich with modern flair.


Portobello Sandwich Rating -

2.6 stars from 8 ratings of Portobello Sandwiches

Ingredients -

  • 4 Four Inch Portobello Mushrooms
  • 1 Cup Fresh Basil Leaves
  • 1 Tablespoon Chili Flakes
  • 1/2 Cup Parmesan Crumbles
  • 1/2 White/Yellow/or Red Onion
  • Olive Oil
  • Sea Salt
  • Lettuce & Bread of Choosing


Cook Time

Prep time: 15 min
Cook time: 15 min
Ready in: 30 min
Yields: Serves Four

Process -

  1. Clean mushrooms by wiping the tops of the caps with a damp cloth. Remove stems.
  2. With a sharp paring knife, make six cuts in the ribbed side of the mushroom. Be careful not to cut all the way through. The trick is to create little pockets, not gashes.
  3. Drizzle over olive oil on both sides of the mushrooms. Rub it in with your hands in the spots where it doesn't cover.
  4. Season the ribbed side of the portobello thoroughly with salt.
  5. Going back to the cuts made earlier, take 2-3 basil leaves and with the dull side of a blade, slowly ease them into the cuts. This process will push salt in the cuts; a step which is vital for the mushroom to loose any unwanted moisture.
  6. Finish seasoning with a pinch of chili flakes.
  7. Preheat the grill to medium-high heat.
  8. Grill for 4-5 minutes on each side. Don't be afraid to let the mushrooms develop some color. You want to cook out a majority of the water held in, or else face a soggy bun.
  9. When both sides have cooked properly, turn down the heat and add Parmesan crumbles to the ribbed side of the mushroom. Allow to sit for 1 minute or until the cheese begins to melt.
  10. Prepare onions, lettuce and condiments. Usually I'll go with a small spread of Mayonnaise, but the sandwich can hold its own without any additions!


Simple, quick and easy! This grilled portobello mushroom sandwich is a mush have for any vegetarian. And for those who don't eat cheese, the sandwich is still very flavorsome without. No more talk about portobellos being stuck in the 90's. This is a great sandwich and it's here for you right now today! Thank you for reading my recipe. Please feel free to leave any comments or suggestions and don't forget to have a quick browse through my other great recipes below.


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    • Joe Macho profile image

      Zach 6 years ago from Colorado

      K9keystrokes - Thanks for all the kind feedback, it's very much appreciated! It's a fairly straightforward sandwich with a great presentation factor. You'll for sure have to make them soon!

      Cresentmoon2007 - Oh, they're tasty! Thanks for the vote.

      Simone Smith - I think it's time you come around and gave mushrooms a second try! The basil, chili and Parmesan really help to jazz them up, especially if you're unsure of mushrooms. Thanks for the comment!

      Claudia Tello - Sounds like you're well seasoned when it comes to portobellos. I appreciate your response. I try make the recipes as easy to follow as possible. You never know what ability levels will be reading! Heck, if you want your recipe to have a high Hub Score, just write it and let it sit unpublished for a day or two. Usually I'll publish with around a score of 60. The rest is up to kind people like you! Thanks for reading, I hope I could be of some help.

    • Claudia Tello profile image

      Claudia Tello 6 years ago from Mexico

      I use Portobello mushrooms constantly in my diet and have tried many sandwich variations, which enables me to attest that they are as pleasant as they look in your great pictures.

      On the other hand, I love the way you edited your Hub, it even came out with a very high Hub score for a recipe with a moderate amount of words. It looks as though you have a little bit more knowledge on programming than the ordinary user like me. Good job.

    • Simone Smith profile image

      Simone Haruko Smith 6 years ago from San Francisco

      Oh my... this looks really good! I'm not the hugest fan of mushrooms, but this looks so delicious, I might just have to give your recipe a try.

    • Cresentmoon2007 profile image

      Cresentmoon2007 6 years ago from Caledonia, MI

      I love Portobello mushrooms and this simply looks tasty. Voted up.

    • K9keystrokes profile image

      India Arnold 6 years ago from Northern, California

      Holy smokes this looks good! I am a big fan of Portobello Mushrooms of any kind, and this recipe sounds so inviting that I can hardly wait to feast on these lovelies! Really well presented and easy to follow...I want one of these mushroom sandwiches right now!



    • Joe Macho profile image

      Zach 6 years ago from Colorado

      Sweet. Enjoy!

    • leroy64 profile image

      Brian L. Powell 6 years ago from Dallas, Texas (Oak Cliff)

      Great hub! Bookmarked.