Tuna Melt
Tuna Melt is an incredible summer sandwich made with a ridiculously flavorful tuna salad and cheese on slightly crisp sliced bread, then topped with tomatoes and avocado. An easy picnic must-have or quick lunch fix that can be prepared either in the oven or on the stovetop. This will become your new favorite!

- Prep time
- 10 min
- Cook time
- 10 min
- Yield
- 2 servings
- Difficulty
- HARD
Ingredients
Quantities are shown as originally provided.
- 2 tablespoons (28ml) butter or olive oil
- 4 slices bread
- 6- 8 ounce canned tuna (, drained )
- 1 green onion (, finely chopped, about (2 tablespoons) )
- 1 celery stick (, finely chopped (¼ cup) )
- ½ tablespoon (2g) fresh parsley (, chopped )
- 1 teaspoon (4g) Creole seasoning
- 1 teaspoon (5g) minced garlic
- juice of ½ lemon
- ¼ cup (58g) mayonnaise
- ½ tablespoon (7.5ml) Dijon mustard
- salt to taste
- 1 avocado (, sliced(optional) )
- 1-2 tomatoes (, sliced )
- ⅓ - ½ cup (37.67g-56.5g) shredded mozzarella
Instructions
- 1
Preheat oven to 375° Degrees F (190 C). While the oven is heating up, proceed with making the tuna salad.
- 2
In a medium bowl, mix together tuna, green onion, celery, parsley, Creole seasoning, garlic, lemon juice, mayonnaise, mustard, and salt to taste.
- 3
Place bread slices on a lined baking sheet, then brush one side of bread with melted butter or olive oil. Toast for about 2-3 minutes. Remove bread slices from the oven.
- 4
Top bread with tuna salad, a slice or grated cheese, and any filling (tomatoes and/or avocado). Then cover with the other slice bread.
- 5
Place on a baking sheet and bake until cheese is melty - 5 to 8 minutes.
- 6
For an open-face sandwich, DO NOT top the sandwich with the other piece of bread. Leave as is and place in the oven until both sides are melted.
- 7
Divide the tuna salad equally- in half or thirds, depending on the number of sandwiches you are making.
- 8
Place tuna salad on half of the bread slices (2 or 3), and evenly spread on the slice.
- 9
Followed by cheese and additional ingredients, tomato, and avocado(optional). Brush with butter.
- 10
Heat a large cast-iron or non-stick skillet over medium-heat. Add about 1 -2 tablespoons of butter to the skillet.
- 11
Place sandwich and cook for about 2-3 minutes on one side.
- 12
Carefully flip sandwich using a spatula to aid in the process. You can equally flip without a spatula and let it cook for 2-3 more minutes until cheese melts and bread is brown and toasty.
- 13
Remove and serve warm.