Spicy Keto Tuna Melts on Portobellos

Indulge in these Spicy Keto Tuna Melts on Portobello mushrooms for a deliciously satisfying low-carb meal. The savory tuna mixture, spiced just right, sits atop juicy portobello caps, melted cheese oozing over the top for a perfect blend of flavors and textures. Ideal for lunch or dinner, this dish is sure to please everyone on a keto journey.

Course Lunch

Cuisine American

Keyword Keto Dinner, Keto tuna melts, Low-Carb Lunch, Portobello mushrooms, Spicy tuna recipe

Prep Time 10

Cook Time 20

Total Time 30

Servings servings

Calories 400kcal

Equipment

Baking sheet
Parchment paper
Mixing bowl
Spoon
Knife
Measuring spoons and cups

Ingredients

2 large portobello mushrooms (approx. 8 oz / 227 g each)
1 can tuna in water (5 oz / 142 g), drained
2 tablespoons mayonnaise (30 g)
1 tablespoon Dijon mustard (15 g)
1 tablespoon sriracha sauce (15 g) (adjust for spice preference)
¼ cup diced red onion (40 g)
¼ cup diced celery (40 g)
½ cup shredded cheddar cheese (60 g)
1 tablespoon olive oil (15 ml)
Salt and pepper to taste
Fresh parsley for garnish (optional)

Instructions

Preheat your oven to 375°F (190°C).
Gently clean the portobello mushrooms with a damp cloth to remove any dirt. Remove the stems and scoop out the gills using a spoon. Brush both sides of each mushroom cap with olive oil and season with salt and pepper.
In a mixing bowl, combine the drained tuna, mayonnaise, Dijon mustard, sriracha sauce, diced red onion, and diced celery. Mix thoroughly until all ingredients are well combined. Taste and adjust seasoning if necessary.
Place the portobello caps, gill side up, on a baking sheet lined with parchment paper. Spoon the tuna mixture into each mushroom cap and top with shredded cheddar cheese.
Bake for 15-20 minutes, or until the mushrooms are tender and the cheese is golden and bubbly.
Remove from the oven, let cool for a minute, garnish with fresh parsley if desired, and serve warm.

Notes

Feel free to customize the spice level by adding more or less sriracha, or even incorporating diced jalapeños for an extra kick. These tuna melts are not only keto-friendly but also packed with protein, making them a perfect choice for a filling meal.

Nutrition