Taste Tested : Fire-Roasted Portobello Mushroom Burger

Portobello mushrooms are the hamburgers of the vegetarian (and vegan, AND gluten-free) world. They marinade and grill well, and are readily available locally during Ontario’s summer months.   TasteTestednew3 “All credit for this recipe goes to my friend Zach, who busted it out during a camping trip we did a few weeks ago in Massassauga Provincial Park (near Parry Sound). If you’re camping or hosting a BBQ this summer, and are expecting a few vegetarian or vegan guests, this is a great alternative to your typical veggie burger. Feel free to adjust the marinade, and add as many toppings as you like!” — Anna Fischer, Feast ON Communications Coordinator 000034070004 copy
Fire-Roasted Portobello Mushroom Burgers
Serves 4
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Prep Time
15 min
Cook Time
10 min
Total Time
25 min
Prep Time
15 min
Cook Time
10 min
Total Time
25 min
  1. 4 Ontario portabello mushrooms
  2. 1/4 cup balsamic vinegar
  3. 2 tablespoons olive oil
  4. Cheese of your choice, sliced
  5. Minced garlic
  6. Pinch of dried basil, salt, pepper to taste
  7. Cayenne, for a bit of kick (optional)
  8. Buns or bread (optional)
  1. Gently wash the mushrooms, and remove the stems.
  2. Mix the marinade, and let the mushrooms sit for about 15 minutes, turning them over periodically.
  3. Place the mushrooms on the grill, or over the fire. Flip them carefully, as you would a burger, every 5 minutes until satisfied with the level of crispness. Keep the marinade! Brush it (or pour with a spoon) over the mushrooms as you grill them.
  4. Not vegan? Great. As you're finishing the burgers on the grill, give them a final flip, and melt a slice of cheese over them before pulling them off the fire.
  5. Carefully lift the mushrooms off the grill and into buns (or right onto your plate).
  6. Add toppings of your choice (pickles, peppers, onions?).
  7. Enjoy!
Culinary Tourism Alliance https://ontarioculinary.com/

About Taste Tested

From the farm to the table, it’s easy to be inspired by Ontario’s endless parade of edibles. With “Taste Tested“, OCTA’s staff are sharing their freshest finds and dishing out their favourites of the season. Come discover what’s on our table – literally!
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