Jul 14 2026
Restaurants›Merritt Canteen›Portabello Burger Recipe

Portabello Burger Recipe

Inspired by Merritt Canteen
Time30m
Serves1

1/2 Angus burger with red wine portobello mushroom sauce topped with mozzarella on a Portuguese Roll

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Ingredients

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Burger Patty

Portobello Mushroom Sauce

Toppings and Assembly

Method

Burger Patty

  1. 1

    Prepare the Burger Patty

    In a mixing bowl, combine the Angus ground beef with salt and black pepper. Form the mixture into a burger patty.

  2. 2

    Cook the Burger Patty

    Heat a grill or skillet over medium-high heat. Cook the burger patty for about 4-5 minutes on each side, or until it reaches your desired doneness.

Portobello Mushroom Sauce

  1. 3

    Sauté the Onions and Garlic

    In a saucepan, heat the olive oil over medium heat. Add the chopped onion and minced garlic, and sauté until the onion is translucent, about 3-4 minutes.

  2. 4

    Cook the Portobello Mushrooms

    Add the sliced portobello mushrooms to the pan. Cook for about 5-7 minutes until they are soft and have released their moisture.

  3. 5

    Add Red Wine and Seasoning

    Pour the red wine into the pan, scraping the bottom to deglaze. Add chopped thyme, salt, and pepper. Let the sauce simmer for about 10 minutes until it thickens slightly.

Toppings and Assembly

  1. 6

    Assemble the Burger

    Place the cooked burger patty on the bottom half of the Portuguese roll. Top with a generous amount of the portobello mushroom sauce and a slice of mozzarella cheese. Cover with the top half of the roll.

  2. 7

    Serve

    Serve the Portabello Burger immediately, with your choice of sides.

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