Go Back
A close-up cross-section of a grilled tuna melt sandwich on thick-cut toasted bread. The sandwich features melted cheddar cheese oozing over a creamy tuna salad filling containing bits of celery and red onion. It is served on a white plate with a side bowl of smooth tomato soup garnished with parsley and a small dish of pickles in the background.

Perfect Crispy Tuna Melt

RASHA
This perfectly balanced tuna melt delivers a crispy golden exterior with a creamy, flavorful filling inside. With just the right amount of tang, crunch, and melt, this recipe fixes the common mistakes and turns a simple sandwich into a satisfying high-protein meal.
Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Course dinner, lunch
Cuisine American
Servings 2 sandwiches
Calories 500 kcal

Ingredients
  

Tuna Mixture

  • 1 can tuna in water, drained
  • 3 tbsp mayonnaise
  • 1 tsp Dijon mustard
  • 1 tbsp lemon juice fresh
  • 2 tbsp celery finely chopped
  • 2 tbsp red onion finely chopped
  • 1 pinch salt
  • 1 pinch black pepper

Sandwich Assembly

  • 4 slices sourdough bread
  • 2 tbsp butter softened
  • 4 slices cheddar or Swiss cheese

Instructions
 

  • In a bowl, combine drained tuna, mayonnaise, Dijon mustard, lemon juice, celery, red onion, salt, and pepper. Mix gently to keep some texture.
  • Butter one side of each bread slice. Place bread butter-side down, then add the tuna mixture evenly.
  • Top the tuna with cheese slices, then close the sandwich with another slice of bread, butter-side facing outward.
  • Heat a skillet over medium-low heat. Place the sandwich in the pan and cook slowly until golden brown and crispy.
  • Flip carefully and cook the other side until the cheese is fully melted and the bread is crisp.
  • Remove from heat and let the sandwich rest for 1 minute before slicing and serving.

Notes

Drain tuna thoroughly to prevent soggy sandwiches. Use medium-low heat to ensure the cheese melts without burning the bread. For a lighter option, substitute mayonnaise with Greek yogurt. Add pickles or herbs for extra flavor.
Keyword comfort food, crispy sandwich, easy tuna recipe, high protein lunch, tuna melt