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Portobello Mushroom Tuna Melt

  • prep time 5 min
  • total time 17 min
  • serves 2
9 Ratings
Portobello Mushroom Tuna Melt

Thick and meaty portobello mushrooms replace high carb bread to make this delicious bread free tuna melt! Only 539 calories for two!

Harry Eastwood Courtesy of:
Harry Eastwood

Fish, Lunch, Main, Shellfish, Fall, Low-Fat, Low-Carb, Healthy

Directions for: Portobello Mushroom Tuna Melt


4 Portobello mushrooms, stemmed, gills removed

2 Tbsp olive oil

1 5 oz can albacore tuna packed in water, drained

1 celery stalk, finely chopped

½ cup finely chopped fresh flat-leaf parsley

2 Tbsp fresh lemon juice

Salt and pepper

4 Deli-thin slices Swiss cheese

4 slices tomatoes

½ cup mixed baby greens


1. Preheat the broiler. Brush the mushrooms with 1 tablespoon oil. Transfer to a rimmed baking sheet and broil, turning once, until softened and cooked through, about 10 minutes.

2. While the mushrooms are cooking, in a bowl, combine tuna, celery, parsley, lemon juice, 1/2 teaspoon salt, 1/4 teaspoon pepper, and remaining tablespoon oil.

3. Remove the mushrooms from the oven. Divide tuna mixture among mushrooms, and spread evenly in caps. Top each with a slice of cheese, and broil until cheese melts, about 2 minutes. Top each mushroom with a tomato slice and 2 tablespoons greens, and serve immediately.

See more: Fish, Lunch, Main, Shellfish, Fall, Low-Fat, Low-Carb, Healthy