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Grilled Portobello Mushroom Steak with mashed potatoes and asparagus

Grilled Portobello Mushroom Steak

Print Recipe
This Grilled Portobello Mushroom Steak recipe is hearty, savory, and smokey, with a quick 30-minute marinade and simple grilling technique!
Course Dinner
Cuisine American
Diet Vegan, Vegetarian
Keyword Grilled Mushrooms, Mushrooms, Portobello Mushroom Steak, Portobello Mushrooms
Prep Time 3 minutes
Cook Time 12 minutes
Marinating Time 30 minutes
Total Time 45 minutes
Servings 2 mushroom steaks
Author Marley Goldin

Ingredients

  • 2 large portobello mushrooms
  • 2 cloves garlic
  • ¼ cup extra-virgin olive oil
  • 3 tablespoons balsamic vinegar
  • 1 teaspoon steak seasoning
  • 1 teaspoon liquid smoke optional

Instructions

  • Clean your mushrooms and remove the stems, and peel and mince your garlic cloves.
    2 large portobello mushrooms, 2 cloves garlic
    Two cleaned Portobello mushroom caps on a plate
  • Add the mushroom caps to a large storage bag (use a reusable storage bag for a more sustainable option!) with the minced garlic, olive oil, balsamic vinegar, steak seasoning, and liquid smoke (optional).
    ¼ cup extra-virgin olive oil, 3 tablespoons balsamic vinegar, 1 teaspoon steak seasoning, 1 teaspoon liquid smoke
    Portobello Mushrooms and quick marinate in bag
  • Seal the bag and shake to coat the mushroom in all the marinade ingredients and set aside at room temperature to marinate for 30 minutes. Move it around every 10 minutes or so if you can, just to ensure the flavors are evenly distributed.
    Portobellos marinating in a reusable storage bag
  • Preheat your grill to high or get a grill pan hot over medium-high heat. Carefully place your mushroom on the grill grate or grill pan with the smooth side facing up. Grill for 5 minutes.
    Grilling portobello mushrooms on a grill pan
  • After 5 minutes, flip the mushroom so that the smooth side is directly on the grill. Grill for another 5 minutes. Then, flip one more time to release excess liquid.
    If the mushroom is stuck to the grill or the grill pan, give it another 2-3 minutes before flipping. Do not force it. The mushroom will release from the grill or pan when it's ready to flip.
    Flipping and grilling portobello mushrooms on a grill pan again
  • Serve hot! I love to enjoy my Mushroom Steaks with these Truffle Mashed Potatoes and Roasted Asparagus and Carrots.
    Grilled Portobello Mushroom Steak with mashed potatoes and asparagus

Notes

  • Best practice for cleaning your portobello mushrooms is using clean hands or a kitchen towel to wipe them clean. Rinsing them with water can lead to slimy or soggy mushrooms. 
  • For more 'shroom recipes, check out this list of Best Mushroom Recipes!