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Make the perfect Grilled Portobello Mushrooms with minimal ingredients, under 15 minutes. Learn how to prepare portobello mushrooms for grilling, what toppings to use and different ways to serve them.

Grilled portobello mushrooms recipe with grill marks

If you are a fan of mushrooms, you are definitely going to like this Grilled Portobello Mushrooms recipe. These grilled portobello caps make a great grilling season vegetarian meal or side dish.

There is nothing better than a grilled portobello mushroom, drizzled with some balsamic vinegar and served with grilled meat.

These juicy grilled portobellos are simple to make and great for parties, gatherings and even weeknight meals and meal prep.

I love all the grilled veggies in the summer!This recipe produces tender, juicy and flavorful grilled portobello mushrooms, that could be served right away, or kept in the fridge for up to three days.

Grilled portobello mushrooms on a white enamelware pan

What ingredients do you need and how to prepare portobello mushrooms for grilling?

For this Grilled Portobello Mushrooms Recipe you’ll need :

  • Portobello mushrooms, cleaned following the directions above
  • Olive oil
  • Butter (optional). Yes I used both olive oil and butter
  • Salt
  • Pepper
  • Thyme (optional)
  • balsamic vinegar (optional)
  • Toppings (optional)
Grilled portobello mushrooms on a grill

You may be wondering how do I clean portobello mushroom caps?

It is very easy! This is part of the preparation in this grilled portobello mushrooms recipe.

  • You first cut off the stems. Reserve to use in another recipe or discard. Stems work great for stews and omelets. You can sautee them in advance and keep in the fridge to use in your meal prep. I don’t like to grill the whole stem. To me it tastes a lot better when chopped and used in soups, stews or omelets.
  • Scrape off the gills using a spoon. This step is optional. You can definitely leave the gills on and grill the mushrooms with them. This way the mushrooms have more intense, earthy flavor. There is no right or wrong answer. Removing the gills is not mandatory. They are edible!
  • Using a damp paper towel clean the mushrooms from the dirt and debris.
  • You can slightly rinse the mushrooms, very quickly with cold water. Then carefully dry them. This is not going to hurt, but please don’t soak them in water for a long time. They can easily soak a lot of water and won’t cook well, will stay soggy and won’t brown properly.
Golden Grilled Portobello Mushrooms with parsley

How long to grill portobello mushrooms?

I grill the prepared portobello mushrooms on a cleaned and preheated grill (to 450 F) for 5-7 minutes per side, until they are fully cooked. You can’t overcook mushrooms that easily, but keep and eye on them.

Serve immediately.

How to grill portobello on the stove top?

Don’t own a grill?

Don’t enjoy grilling? I know it is not for everyone!

Yes, I’m excited to let you know that you can grill these portobello caps in a skillet on the stove top.

I like to use a ribbed cast iron skillet and cook the mushrooms on the stove top on medium-high heat for 5-7 minutes per side.

You can also cook “grill” portobello mushrooms in the oven at high temperature 425F for 15-20 minutes, turning once and you’ll get similar effect like the one from the grill.

What toppings to use for grilled portobello mushrooms?

  • cheese like mozzarella or parmesan
  • bacon
  • blue cheese
  • tomatoes
  • guacamole

How to make portobello mushroom burger?

All you need to do is grill the mushrooms following the directions in the recipe. Then serve on a bun with lettuce, tomato, onion and other toppings or your choice. It makes a great vegetarian or vegan alternative to traditional burger.

How often do you buy portobello mushrooms? Are you able to easily find them at the grocery store/farmer’s market?

Portobello mushrooms are usually available year round at the grocery stores in the USA.

I buy them all the time. While I’ve cooked them in the oven and in a skillet on the stove top, my favorite way to cook portobello mushrooms is on the grill.

Portobello mushrooms are the mature version of Cremini mushrooms harvested when they’re fully grown.

I can say that these grilled portobello mushrooms are a staple in my kitchen.

What goes with grilled portobello mushrooms?

These easy grilled portobello mushrooms go well with:

  • Salads
  • Grilled steak, chicken or sausage
  • Other kinds of grilled veggies like zucchini or corn
  • They also taste great on their own

Recipes to serve these portobello mushrooms with:

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Grilled portobello mushrooms on a white enamelware pan topped with pa
5 from 2 votes

Grilled Portobello Mushrooms

Make the perfect Grilled Portobello Mushrooms with minimal ingredients, under 15 minutes. Learn how to prepare portobello mushrooms for grilling, what toppings to use and different ways to serve them.
Prep: 5 minutes
Cook: 10 minutes
Total: 15 minutes
Servings: 6



  • 6 portobello mushrooms
  • 1/4 cup olive oil
  • 1 tbsp butter
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/2 tsp fresh thyme
  • 1 tbsp balsamic vinegar


  • Preheat a gas grill to medium-high heat. Clean grates.
  • Prepare Portobello mushrooms by removing the stems. You can cut them with a knife. Using a spoon, scrape down the gills of each mushroom. 
  • Season on both sides with salt, pepper and thyme (optional). Brush with olive oil. 
  • Cut butter into 6 equal bits and add to the inner side of the mushrooms. 
  • Place mushrooms on the grill, stem side up and grill for 5-7 minutes, until the liquid on top has almost evaporated. Flip and grill for 5-7 more minutes.
  • Drizzle with balsamic vinegar (optional) and serve.


Calories: 117kcal, Carbohydrates: 3g, Protein: 1g, Fat: 11g, Saturated Fat: 2g, Cholesterol: 5mg, Sodium: 412mg, Potassium: 305mg, Fiber: 1g, Sugar: 2g, Vitamin A: 60IU, Calcium: 3mg, Iron: 0.3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Appetizer
Cuisine: American
Tried this recipe?Mention @cookinglsl or tag #cookinglsl!

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Hi! I'm Mira.

I share simple, mostly low-carb and Keto recipes, that don't take a lot of time to make and use mostly seasonal, easy to find ingredients. I'm a supporter of healthy eating, but you'll also find some indulgent treats too.

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  1. I absolutely LOVE mushrooms and portboellos are a favorite of mine, too! I’ve never grilled them myself before, so I need to try these. Sounds perfect for the summer!

  2. I’m a huge fan of portobello mushrooms (and all other mushrooms in general) so I’m in love with this dish! I love grilling them for fajitas or burgers…they’re amazing!