Close up of a marinated grilled portobello mushroom steak shown with mushroom jus on a plate with broccoli and fries. An easy vegan dinner for two recipe.
Print Recipe
5 from 4 votes

Portobello Mushroom Steaks

These juicy and tender grilled portobello mushroom steaks are AMAZING! They're quick, easy, tasty and have all the best flavours of a smokey grilled steak, but vegan. The charred mushrooms have a lovely dense texture that's perfect with the flavourful simple marinade. Vegetarian, vegan and gluten free. Make them on the grill, grill pan, barbecue or in the oven.  
Prep Time5 mins
Cook Time10 mins
Total Time15 mins
Course: Main Meal
Cuisine: American, International
Servings: 2
Calories: 216kcal
Author: Kate Hackworthy | Veggie Desserts


  • 2 Portobello mushrooms (any large flat mushrooms)
  • 3 tbsp oil
  • 1 tsp soy sauce or tamari for gluten free
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • ½ tsp ground pepper
  • ½ tsp sea salt
  • tsp liquid smoke optional


  • Remove the stems from the mushrooms.
  • Add the oil and all seasonings to a large dish and mix. Brush it over the mushrooms, then leave the mushrooms in the remaining liquid to marinade.
  • Heat a griddle pan or clamp grill (like a George Foreman grill). Place the mushroom steaks onto the hot grill and cook until soft and lightly charred. If possible, save the mushroom cooking juices.
  • Alternatively heat a grill/grill pan/bbq/broiler and cook as above. Or, heat the oven to 200c/400f and bake on a tray for 25 minutes or until soft and juicy.
  • Serve with fries or mashed potatoes and steamed broccoli or other veg with the cooking juices poured over the mushrooms.


If you can't get hold of the liquid smoke (in larger grocery stores and online at Amazon), then these portobello steaks are still lovely without it. 
The nutritional information provided is approximate and is created with online calculators. Info will vary based on cooking methods and brands of ingredients used.


Calories: 216kcal | Carbohydrates: 5g | Protein: 2g | Fat: 21g | Saturated Fat: 1g | Sodium: 759mg | Potassium: 324mg | Fiber: 1g | Sugar: 2g | Iron: 0.3mg