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Grilled Portobello Mushrooms

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Grilled Portobello Mushrooms are a scrumptious, low carb, grilling staple. We cut them into strips so they’ll soak up the white wine marinade AND cook more evenly than whole mushrooms. Use portobello mushrooms for a side dish, or as a natural meat substitute for sandwiches and wraps.

sliced portobello mushrooms in grill basket on outdoor grill

Grilled Portobello Mushrooms

When grilling season hits, you need an easy, meatless griller that’s inexpensive, not processed, and downright delish.

This simple recipe calls for a quick, white wine marinade (who doesn’t love THAT?!) and about 15 minutes on the grill.

Once these babies are grilled, you can use them for sandwiches, wraps, and salads. The sky’s the limit!

Here’s what we LOVE about this recipe:

  • It’s vegetarian…actually, it’s vegan and gluten-free.
  • The marinade uses mostly white wine and water for the liquid, so we use less oil…bonus!
  • The marinating process takes only 30 minutes (but you can marinate up to 8 hours if you like).
  • Grilling the mushrooms takes under 15 minutes…and they’re so. dang. delicious!
  • You can eat these mushrooms warm or cold. Trust me, they rock either way.
  • They’re a nutritious, vegan meal prep item.

How to make portobello mushrooms on the grill

Step 1. Whisk together the marinade ingredients

Step 2. Clean the mushrooms, slice them into 1″ think pieces, and place them in a baking dish.

Step 3. Marinate the mushrooms by pouring the marinade over them and allowing them to sit for 30 minutes (no need to refrigerate).

sliced portobello mushrooms in marinade in glass bowl on stainless surface

Step 4. Fire up the grill to medium-high and, when it’s ready, grill the mushrooms in a prepared grill basket for 10-15 minute, tossing as needed to avoid burning.

sliced portobello mushrooms being turned with tongs in grill basket on outdoor grill

I love this Weber Grill Basket because it prevents the veggies from falling through the grill. You can live without it, but it’s a really convenient tool.

Step 5. Carefully remove the grill basket and transfer the mushrooms to a plate or pan to cool

* See full recipe instructions below

How to serve grilled portobello mushrooms

  • eat it with your fingers…you’ll feel that helpless
  • stuffed inside sandwich wraps with other vegetables
  • as a meat substitute for just about anything (even spring rolls!)
  • as a mini steak over polenta, rice, pasta, or quinoa, and topped with your favorite sauce

We make this recipe twice a month because we love Portobello mushrooms, grilling, and eating vegetarian as often as possible.

So, I hope you’ll jump on board with this idea and make your meatless meals even easier.

Grilled Portobello Mushroom ingredients

  • portobello mushroom caps
  • dry white wine
  • water
  • extra virgin olive oil
  • garlic cloves
  • Italian seasoning
  • Kosher salt and pepper

Tools I use for this recipe:

  • chef knife and cutting board
  • whisk or fork (to mix marinade)
  • 8″ x 10″ baking dish
  • outdoor grill
  • grill basket
  • tongs
  • cooling plate

Want more easy mushroom recipes?

Garlicky Oven Roasted Mushrooms

Easy Marinated Mushrooms 

Vegetarian Mushroom Stroganoff

(top) sliced portobello mushrooms in grill basket on outdoor grill (center) title text (bottom) sliced portobello mushrooms in marinade in glass bowl on stainless surface
sliced portobello mushrooms in grill basket on outdoor grill
Print REcipe
5 from 17 votes

Grilled Portobello Mushrooms

Grilled Portobello Mushrooms are a scrumptious, low carb, grilling staple. We cut them into strips so they'll soak up the white wine marinade AND cook more evenly than whole mushrooms. Use portobello mushrooms for a side dish, or as a natural meat substitute for sandwiches and wraps.
Course Main Course, Meal Prep, Side Dish
Cuisine American
Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes
Servings 15 .5-oz pieces
Calories 34kcal
Author Traci Antonovich

Ingredients

Instructions

Prep the mushrooms

  • Carefully remove stems from PORTOBELLO MUSHROOM CAPS; wipe mushrooms clean with a paper towel; cut into 1” slices; place in a 8" x 10" baking dish.
  • In a mixing bowl, whisk together WHITE WINE, WATER, OLIVE OIL, GARLIC, ITALIAN SEASONING, SALT, PEPPER; pour over the sliced mushrooms.
    If you need more liquid for the marinade, add small amounts of additional white wine, or water, or both…your choice.
  • Cover the dish with a lid or plastic and marinate for 30 minutes. Alternatively, you can cover and marinate the mushrooms up to 8 hours in the refrigerator.

Grill the mushrooms

  • Preheat the grill to medium-high heat and spray a grill basket with cooking oil. Remove MUSHROOMS from baking dish and drain off excess marinade.
  • Place the mushrooms in the prepared grill basket directly on the grate of the hot grill. Close the lid and allow mushrooms to grill for 5 minutes.
  • Carefully lift the lid and use tongs to move the mushrooms around in the basket to promote even heating. Close lid and resume grilled for 5 minutes until thoroughly cooked.
    You may wish to add yet another 5 minutes to the grilling time.
  • Carefully remove the grilled mushrooms; cover and allow to cool slightly. Serve warm, or allow to completely cool and store in an airtight container up to 3 days.

RECIPE NOTES

Yield: 15 .5-oz pieces
Serving size: 3 .5-oz pieces
Nutrition facts are provided as a courtesy and are estimates based on unbranded ingredients acquired from a nutrition database. For accurate calculations, please refer to brand packaging information and consult your nutritionist.

Nutrition

Nutrition Facts
Grilled Portobello Mushrooms
Amount Per Serving (3 .5-oz pieces)
Calories 34 Calories from Fat 18
% Daily Value*
Fat 2g3%
Saturated Fat 1g6%
Sodium 42mg2%
Potassium 75mg2%
Carbohydrates 1g0%
Fiber 1g4%
Sugar 1g1%
Protein 1g2%
Vitamin C 0.2mg0%
Calcium 3mg0%
Iron 0.1mg1%
* Percent Daily Values are based on a 2000 calorie diet.
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(top) sliced portobello mushrooms in grill basket on outdoor grill (bottom) title text
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Comments

  1. Kelly says

    Does this recipe require Italian Seasoning? I see it in the pictures of ingredients and there is mention of it in the directions but it is not mentioned in the actjal list of ingredients.

    Thanks

    Reply

  3. Jamie says

    5 stars
    So glad you shared this recipe! I’m always looking for more ways to prepare portobello mushrooms!

    Reply

  4. Diana says

    5 stars
    I bought portobello mushrooms a couple of days ago, and they’re still sitting on my counter. Now I know what to do with them! Thank you for the recipe

    Reply

  5. Caroline says

    5 stars
    These look delicious. Portobellos are definitely an underrated ingredient, I think, but they have such flavor. The marinade sounds tasty too.

    Reply

  6. SHANIKA says

    5 stars
    These Grilled Mushrooms look great! They definitely come in handy as a great meat substitute!

    Reply

    • Traci Antonovich says

      Thanks, Shanika! Yes, ma’am they sure do! That is if they ever make it past the part where I eat them with my fingers before they hit the table 😉

  9. Jacqueline Meldrum says

    5 stars
    You had me at mushrooms. I absolutely love mushrooms. I am literally drooling here and would totally not want to share this! Oh and I need lots of black pepper on my mushrooms, if you’re offering?

    Shared 🙂

    Reply

  11. Beth says

    5 stars
    Oh, those shrooms look so good! My husband is going to love these! He is addicted to mushrooms on everything!!

    Reply

  14. Marie says

    5 stars
    I love the meaty texture and earthy flavour of portobellos! Love this marinaded grilled version. I need to add this to my recipes to make! I would love to eat these in a burger.

    Reply

  16. Elaine @ Dishes Delish says

    5 stars
    I absolutely love grilled portobello mushrooms!! They are so juicy and tender!! Your recipe looks so delicious and super easy!! I love all the ingredients in the marinade and can not wait to make it!!

    Reply

  17. Soniya says

    These are my favorite mushrooms and I am always looking for different ideas or receipes! These grilled Portobello.mushrooms looks.so.delicous..cant wait to try them!!

    Reply

  18. Roxana says

    5 stars
    This looks like a great recipe. I am making steak today so I might use that marinade. And I have some portobellas and will try that next.

    Reply

  19. Mirlene says

    5 stars
    This is different. Looks very interesting. I do not believe I’ve ever had grilled portobello mushroom mini steaks. Curious to try it.

    Reply

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