Portobello Mushroom Tuna Melt Recipe

This gourmet twist on a classic tuna melt is light, healthy, and bursting with flavor! Juicy portobello mushrooms are topped with a vibrant tuna salad and melted cheese for a satisfying and surprisingly elegant meal. Perfect for a quick weeknight dinner or a light lunch. Get ready for a flavor explosion that's both healthy and delicious!

Prep Time 10 mins
Cook Time 25 mins
Calories 490.8 kcal
Protein 75g
Rating Be the first
Portobello Mushroom Tuna Melt 61

Recipe Actions

Share this recipe:

Recipe Author

Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Portobello Mushroom Tuna Melt

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Portobello Mushroom Tuna Melt? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Portobello Mushroom Tuna Melt

  1. Preheat your broiler to high.
  2. Brush the tops of 2 large portobello mushrooms with 1 tablespoon of olive oil.
  3. Place the mushrooms gill-side up on a rimmed baking sheet. Broil for 5-7 minutes per side, or until softened and slightly charred.
  4. While the mushrooms broil, prepare the tuna salad: In a medium bowl, gently combine 1 (5 ounce) can tuna (drained), 1/2 cup finely chopped celery, 2 tablespoons chopped fresh parsley, 1 tablespoon lemon juice, 1/2 teaspoon salt, 1/4 teaspoon black pepper, and 1 tablespoon olive oil.
  5. Remove the mushrooms from the broiler.
  6. Evenly divide the tuna salad among the mushroom caps.
  7. Top each mushroom with 1 slice of your favorite cheese (cheddar, provolone, or Swiss recommended).
  8. Broil for 1-2 minutes, or until the cheese is melted and bubbly.
  9. Serve immediately. Garnish with a tomato slice and your favorite greens (optional, serve on the side for less mess).

Nutrition Information (Approximate per serving)

Sodium

41 g

Sugar

22g

Fat

62g

Carbs

5g

Frequently Asked Questions

How long does it take to make Portobello Mushroom Tuna Melt?

Portobello Mushroom Tuna Melt takes about 35 minutes from start to finish — roughly 10 minutes to prepare and 25 minutes to cook.

How many calories are in Portobello Mushroom Tuna Melt?

Portobello Mushroom Tuna Melt has approximately 490.8 calories per serving, with about 75 g protein, 5 g carbohydrates and 49 g fat.

What ingredients do I need for Portobello Mushroom Tuna Melt?

The key ingredients for Portobello Mushroom Tuna Melt are Portabella Mushrooms, Olive Oil, Albacore Tuna In Water, Celery, Fresh Flat Leaf Parsley, Fresh Lemon Juice. See the full list with measurements above.

Reviews

No reviews yet — be the first to share your thoughts on this recipe!

Write a Review