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Kalyn's Kitchen

Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese (Video)

Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese are delicious for a low-carb meal! Use Meatless Monday to find more recipes like this one.

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Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese!

Portobello mushrooms are something I haven’t cooked with nearly often enough, and they’re a wonderfully healthy ingredient, particularly popular with people who are looking for something besides meat to cook on the grill. Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese isn’t a vegetarian recipe since the mushrooms are stuffed with spicy Italian sausage, but I think the idea could easily be adapted to a vegetarian stuffed mushroom, maybe even replacing the sausage with diced portobellos. But if you’re an Italian Sausage fan, you’ll love this recipe!

The idea for stuffing grilled portobello mushrooms with sausage came from Bobby Flay’s Grill It.  I’m a fan of Bobby Flay and I like the creative grilling ideas in this book, but on this recipe, there are confusing directions and omissions which should have been caught in editing. Maybe it’s just the school teacher in me that makes me mention it, because overall I love the book, which already has lots of pages flagged with post-its, and this recipe was really delicious. (This cookbook was sent to me by the publisher back in 2008 (when I still accepted books), but I never write about a cookbook unless I would actually buy it myself.)

Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese found on KalynsKitchen.com

Start by cooking pork or turkey Italian Sausage until it’s well browned. Remove sausage, saute chopped onion, then mix sausage back into the onions. Add tomato sauce and red pepper flakes to onion/sausage mixture and cook a few minutes while you chop the spinach. Then add chopped spinach, which will look like a lot at first. After a few minutes the spinach has cooked down. Turn off heat and stir in chopped chopped basil and parsley.

The book didn’t mention removing the brown gills inside the portobella mushrooms, but I scraped them out with a spoon (partly to give more room for the stuffing!) Then brush both sides of the mushrooms with olive oil, put mushrooms on the grill inside facing down and cook about 4 minutes before you stuff them. Bobby Flay’s version of this used fresh mozzarella with tomatoes on top, and it looks delicious. There are no garden tomatoes here yet, and I substituted grated mozzarella which is a bit more widely available. The stuffed mushrooms cook on the grill for about 5 minutes, or until cheese is melted and starting to brown, mushroom is cooked through, and stuffing is hot.

Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese found on KalynsKitchen.com

More Mushrooms on the Grill:

Super Easy Grilled Mushrooms ~ Kalyn’s Kitchen
Grilled Portobello Mushrooms from A Veggie Venture
Grilled Halloumi Cheese Skewers with Mushrooms and Sweet Onions from Kalyn’s Kitchen
Grilled Portobello Caps from The Well Seasoned Cook

Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese

Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese make a complete meal!


  • 4 large Portobello mushrooms (get the biggest ones you can find)
  • 12 oz. mild or hot Italian sausage (use turkey Italian sausage for South Beach Diet or pork Italian sausage for low-carb)
  • 1-2 T olive oil (for browning sausage and onions and brushing on mushrooms before grilling)
  • 1 small onion, finely chopped
  • 1 tsp. minced fresh garlic (or use chopped garlic from a jar)
  • 1/2 cup tomato sauce (see notes)
  • pinch red pepper flakes (optional)
  • 8 oz. coarsely chopped spinach leaves
  • 2 T chopped fresh basil (probably optional, but recommended)
  • 2 T chopped fresh parsley (probably optional, but recommended)
  • 1/2 cup grated mozzarella, plus 1/2 cup for sprinkling on top


  1. Preheat gas or charcoal grill to high heat.
  2. Heat a small amount of olive oil in heavy frying pan.
  3. Then crumble Italian sausage into pan and cook about 5 minutes, breaking apart with back of the turner as it cooks.
  4. When sausage is well-browned, remove to bowl.
  5. If needed, add a bit more olive oil, then saute onions until they’re starting to soften, about 2 minutes.
  6. Add garlic and continue cooking until onions are starting to brown, a few minutes more.
  7. Add Italian sausage back into pan, then add red pepper flakes and tomato sauce and simmer 2-3 minutes while you chop the spinach.
  8. Add chopped spinach and let it wilt and cook down, stirring so it’s evenly distributed in the sausage/onion mixture.
  9. Turn off heat and stir in 1/2 cup mozzarella, chopped basil and parsley.
  10.  Remove stems from mushrooms caps, being careful not to break them.
  11.  Scrape out brown gills from inside mushrooms if desired, then brush both sides of mushrooms with olive oil.
  12.  Put mushrooms on grill, inside facing down, and cook about 4 minutes, until mushroom is slightly browned and starting to soften.
  13.  Remove mushrooms from the grill. (I put them on a wooden cutting board.)
  14.  Carefully stuff the inside of each mushroom with sausage/spinach/cheese mixture, then top each mushroom with about 2 T grated mozzarella.
  15.  Carefully put mushrooms back on grill, stuffing facing up of course!
  16.  Cover grill and cook about 5 minutes, checking often and removing from grill when mushrooms are cooked through, and cheese is melted and starting to brown, and stuffing mixture is hot.
  17.  Serve immediately.


I used garden tomato sauce from my freezer for this recipe. If you open a can, just freeze the rest.

Recipe adapted from Bobby Flay’s Grill It.

All images and text ©

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
I changed a few things in this recipe for Grilled Portobello Mushrooms Stuffed with Sausage to make it suitable for any phase of the South Beach Diet, and ate this as a main course with a simple green salad. Everything in this recipe is a good low-carb food choice, so this should work for most low-carb eating plans.

Find More Recipes Like This One:
Use the Recipes by Diet Type photo index pages to find more recipes suitable for a specific eating plan. You might also like to Follow Kalyn’s Kitchen on Pinterest to see all the good recipes I’m sharing there.

Nutritional Information?
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Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese found on KalynsKitchen.com

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    57 Comments on “Grilled Portobello Mushrooms Stuffed with Sausage, Spinach, and Cheese (Video)”

  1. ooooh, these look delicious! To someone else’s mention of crab-stuffed ports, I have a packet of crawfish that would make a great stuffing ingredient. It’s ashame the bf doesn’t like mushrooms.

  2. RM, this was not dry at all. Maybe it was brushing on the olive oil before (both sides) or the moisture in the filling, not sure which made the difference, but it was very juicy.

  3. I love portobello mushroom but find that grilling dries it up…any tip not to make it too dry?

  4. Looks incredibly good. I love the idea of using sausage in the stuffing.

  5. My vegetarian taste buds missed sausage, but there are now wonderful analogs which would be great in this recipe. I object to portobello “burgers” — not a nutritional substitute for protein!

  6. Thanks everyone for the nice feedback.

    Hana, the mushrooms I had were huge and I stuffed them pretty full, so I just ate one big mushroom for a meal. But I think your idea is a good one, a green salad would be perfect to go with this, or something like sliced cucumber with caesar dressing.

  7. Hi Kalyn,

    I have been following your blog for awhile but this is the first time posting – I love your site, great information!

    One question about this mushroom dish – which looks so yummy – what would you/did you serve these with? Just a big salad? Any side ideas to make this a full meal deal?

    Thanks in advance!

  8. Yum, Since I don’t eat red meat I often order a Portobello Sandwich if I am going out with friends for “burgers” . Yours look great!

    Sharona May

  9. Oh, Kalyn, those look fantastic! I am a huge fan of mushrooms, just had a wonderful appetizer last night at a local restaurant- crab-stuffed mushrooms. I’m in search of the recipe so that I can try them myself.

  10. This is a delicious idea. Will try it tonight. I love checking out your blog for new South Beach ideas when I’m in a cooking rut. 🙂

  11. I bought some Portobello Mushrooms today, but wasn’t sure what to do with them yet… That picture is tempting me to try them this way!!!

  12. I bet I could make this with soy sausage for my wife

  13. Mushrooms stuffed with spinach and covered in cheese sound really good!

  14. What a great idea! I’ve been making spinach and cheese stuffed portobellos as a quick side dish to serve with grilled steak for a long time, but I never thought of adding sausage to make a main dish. I’ll definitely try it.

  15. I loved stuffed portobello mushrooms. This looks like a tasty variation!

  16. I love making grilled portobello “burgers”, with a slather of soft goat cheese, lettuce and tomato, on a bun. Delicious!

  17. Another great recipe! I appreciate and enjoy the step by step photos, too.

  18. Ive copied the recipe down already. I love mushrooms – hubby isn’t quite so in love with them as me, but Im working on it!!

  19. I think I might make a vegetarian version by replacing the sausage with tempeh.
    Not smoked or flavored tempeh, just plain tempeh browned in some oil with maybe a splash of balsamic vinegar at the end to deglaze the pan.

  20. Ooh Kalyn, what a lovely idea for a summer supper! My husband loves all forms of mushrooms. I’ll definitely give this a try.