Jul 14 2026
RestaurantsPenguin Ed's Bar-B-QuePortabello Sandwich Recipe

Portabello Sandwich Recipe

Time30m
Serves2

Grilled portabello mushroom sandwich with melted swiss cheese grilled onion, lettuce, tomato, mayo, served on a whole wheat kaiser roll.

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Ingredients

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Sandwich Ingredients

Method

Preparation Instructions

  1. 1

    Prepare the Onions

    Slice the onion into thin rings. Heat 1 tablespoon of olive oil in a skillet over medium heat. Add the onion rings, sprinkle with salt and pepper, and sauté until caramelized, about 10-12 minutes. Set aside.

  2. 2

    Grill the Mushrooms

    Brush the portobello mushrooms with 1 tablespoon of olive oil and season with salt and pepper. Grill on medium heat for about 5-7 minutes on each side, or until tender.

  3. 3

    Melt the Cheese

    In the last minute of grilling the mushrooms, place a slice of Swiss cheese on top of each mushroom to melt.

  4. 4

    Assemble the Sandwich

    Spread 2 tablespoons of mayonnaise on each kaiser roll. On the bottom half, layer the grilled portobello mushrooms with melted Swiss cheese, followed by the caramelized onions, lettuce, and tomato slices. Top with the other half of the roll.

  5. 5

    Serve

    Serve the sandwiches warm with a side of your choice.

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