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Two marinated and grilled portobello mushrooms on a wooden serving platter.
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5 from 1 vote

Grilled Portobello Mushrooms

Ready for a big side with an even bigger flavor? These grilled portobello mushrooms come dressed to impress in a savory balsamic marinade.
Prep Time20 minutes
Cook Time6 minutes
Marinade Time40 minutes
Total Time1 hour 6 minutes
Course: Side Dish
Cuisine: American
Keyword: Grilled Portobello Mushrooms
Servings: 4 people
Author: Susie Bulloch

Ingredients

  • 4 portobello mushroom caps

Balsamic Marinade

  • cup olive oil
  • 3 Tablespoons balsamic vinegar
  • 1 teaspoon black pepper
  • 1 teaspoon salt
  • 2 teaspoons Italian seasoning
  • 2 cloves garlic minced
  • 2 ounces shredded Parmesan cheese optional

Instructions

  • Prep the mushrooms. Prepare your mushroom caps by removing any stems and using a spoon to scrape out the gills under the cap. The gills have a tendency to taste dirty after grilling, so I strongly recommend removing them.
    4 portobello mushroom caps
  • Marinate. Combine all ingredients for a marinade and pour into a gallon zip-top bag. Place the mushrooms in the bag, press out any excess air, and seal tightly. Marinate for 30-40 minutes in the refrigerator. Don’t marinate for too much longer or the texture of your mushrooms will change and become rubbery.
    ⅓ cup olive oil, 3 Tablespoons balsamic vinegar, 1 teaspoon black pepper, 1 teaspoon salt, 2 teaspoons Italian seasoning, 2 cloves garlic, 2 ounces shredded Parmesan cheese
  • Preheat. Preheat your grill to 450 degrees F. You can use anything you have available to you. Gas or charcoal work equally well for this recipe.
  • Grill the mushrooms. Remove the mushrooms from the marinade and shake lightly to remove any excess liquid. Place the portobello mushrooms on the grill grates, close the lid, and grill for 4-5 minutes. Flip the mushrooms and grill for an additional 4-5 minutes. There is no target temperature for mushrooms to be food-safe, so you are looking for nice grill marks and a darkened color overall. The caps of the mushrooms will also appear to “relax” and fall more open when they are finished cooking.
  • Enjoy. Take the mushrooms off of the grill and transfer to your serving platter.

Video

Nutrition

Calories: 255kcal | Carbohydrates: 7g | Protein: 8g | Fat: 22g | Saturated Fat: 5g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 14g | Trans Fat: 1g | Cholesterol: 12mg | Sodium: 809mg | Potassium: 362mg | Fiber: 2g | Sugar: 4g | Vitamin A: 142IU | Vitamin C: 1mg | Calcium: 184mg | Iron: 1mg