A classic open-faced tuna melt sandwich featuring a creamy tuna salad topped with melted cheddar cheese on toasted bread. Perfect for a quick and satisfying lunch or dinner.
1 (5 ounce) can tuna packed in water, drained
3 tablespoons mayonnaise
1 tablespoon finely chopped red onion
1 tablespoon finely chopped celery
1 teaspoon fresh lemon juice
1/4 teaspoon salt
1/8 teaspoon black pepper
4 slices white bread
4 slices cheddar cheese
1 tablespoon unsalted butter, softened
Preheat the oven broiler on high.
In a medium bowl, combine the drained tuna, mayonnaise, chopped red onion, chopped celery, lemon juice, salt, and black pepper. Mix well until all ingredients are evenly incorporated.
Lightly butter one side of each slice of bread.
Place the bread slices butter-side down on a baking sheet.
Toast the bread under the broiler for 1 to 2 minutes until lightly golden and crisp. Watch closely to prevent burning.
Remove the baking sheet from the oven and evenly spread the tuna salad mixture on top of each toasted bread slice.
Place one slice of cheddar cheese on top of the tuna salad on each sandwich.
Return the baking sheet to the oven and broil for an additional 3 to 5 minutes, or until the cheese is melted and bubbly.
Remove from the oven and let cool for 1 minute before serving.