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a tuna melt sandwich cut in two on a cutting board with potato chips.
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5 from 5 votes

Tuna Melt

Filled with delicious tuna salad, a layer of cheddar, and fresh sliced tomato this Tuna Melt is baked to perfection in the oven until the cheese is perfectly melted and the bread is crispy golden brown. It’s the ultimate hot sandwich that makes a fantastic easy lunch or dinner!
Prep Time7 mins
Cook Time8 mins
Total Time15 mins
Course: Lunch, Sandwich
Cuisine: American
Keyword: tuna melt, tuna melt sandwich
Servings: 4
Calories: 624kcal


  • 2 6 ounce cans white tuna in water, drained and flaked
  • cup mayonnaise
  • 1 tablespoon lemon juice freshly squeezed
  • 1 stalk celery finely chopped
  • 1 green onion finely chopped
  • 3 tablespoons fresh parsley chopped
  • ¼ teaspoon salt
  • ¼ teaspoon black pepper
  • 8 slices bread
  • ¼ cup butter softened
  • 8 slices white cheddar cheese
  • 1 large tomato sliced, optional


  • Preheat the oven to 400°F.
  • In a medium size bowl add the tuna, mayonnaise, lemon juice, celery, green onion, fresh parsley, salt, pepper and mix until well combined.
    buttered bread slices on a cutting board.
  • Spread butter on one side of each bread slice. Place 4 slices on a baking sheet, with the buttered side down.
    process shots showing how to make tuna salad.
  • Top each slice of bread with ¼ of the tuna salad, 2 slices of the cheddar cheese and tomato slices. Top with the other slices of bread with the buttered side up.
    process shots showing how to assemble making tuna melt sandwiches.
  • Transfer the baking sheet to the oven and bake until the cheesy melts, 5 to 8 minutes.


  1. Use tuna in water. Use tuna in water and drain it well. The tuna in oil is not only less healthy but will be way too oily when mixed with the mayo.
  2. Taste for salt. After you mix all the tuna salad ingredients together, taste for salt and add more if needed. You always want to wait till the very end to add any additional salt. 
  3. Fully butter the bread. Make sure the butter is softened and that you evenly spread it all over the slices of bread so that the tuna melt bakes to a crispy golden brown.
  4. Already cooked tuna melts will keep in the fridge for up to 3 days. However, they don’t tend to freeze well. To reheat, put the sandwiches in the oven at 350°F (177°C) on a sheet pan for about 10 minutes. 


Serving: 1tuna melt | Calories: 624kcal | Carbohydrates: 31g | Protein: 20g | Fat: 47g | Saturated Fat: 21g | Polyunsaturated Fat: 10g | Monounsaturated Fat: 11g | Trans Fat: 1g | Cholesterol: 94mg | Sodium: 911mg | Potassium: 295mg | Fiber: 3g | Sugar: 5g | Vitamin A: 1636IU | Vitamin C: 13mg | Calcium: 487mg | Iron: 3mg