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+ servings
5 from 6 votes

Grilled Portobello Mushrooms

This is the best recipe to make easy portobello mushroom side, portobello mushroom steaks, or a grilled portobello mushroom burger!
Author Diana
Servings 4 servings
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes


  • Grill pan


  • 4 portobello mushrooms stalks removed
  • 3 tablespoons balsamic vinegar
  • 3 tablespoons olive oil
  • 1 teaspoon garlic granules
  • 1 teaspoon fresh rosemary chopped
  • ½ teaspoon salt
  • ¼ teaspoon ground black pepper


  • Whisk all of the ingredients in a small bowl until well combined.
  • Marinate the mushroom caps in the marinade, and using a basting pastry brush, brush the marinade over them so that they're well coated.
  • Spray your grill pan with oil, and place on medium heat.
  • Once it's hot, place the marinated portobellos cap side down. As the mushrooms are being grilled, brush over the leftover marinade to get more flavor. Cook for 3-4 minutes, and you'll notice that grill marks will become obvious on the mushroom caps.
  • Flip them over and cook for 3 more minutes. Remove from the grill pan and serve.


  • To clean the mushrooms, use a clean paper towel and gently rub off any dirt from the caps. I don't recommend removing the gills as they add a lot to the flavor.
  • Remove the stalks for easier grilling. Using your fingers gently twist and pull the stalks and they should come right off. For super fresh mushrooms, you'll have to use a small paring knife to help you remove the stalks.
  • I recommend enjoying these grilled Portobello mushrooms on the same day, but if you have leftovers then store them in an airtight container in the fridge for up to 2 days.
  • You can reheat the leftover Portobellos if you like, but I serve them cold the next day.
  • I like to use olive oil for its flavor, but feel free to substitute it with a neutral oil with a higher smoke point.


Calories: 73kcal | Carbohydrates: 5g | Protein: 2g | Fat: 6g | Saturated Fat: 1g | Sodium: 300mg | Potassium: 315mg | Fiber: 1g | Sugar: 3g | Calcium: 3mg | Iron: 1mg