Ingredients

  • 6 slices white bread
  • 2 (5 ounce) cans tuna, drained
  • 1/4 cup mayonnaise, or to taste
  • 1 tablespoon lemon juice
  • 1 tablespoon finely chopped lemon zest
  • 1 tablespoon finely chopped fresh dill
  • 1 large tomato, thinly sliced
  • 6 slices Swiss cheese

Method

  • Set oven rack about 6 inches from the heat source and preheat the oven's broiler. Arrange bread in a single layer on a baking sheet.
  • Toast bread lightly on both sides in preheated oven, about 1 minute per side.
  • Mix tuna, mayonnaise, lemon juice, lemon zest, and dill in a bowl. Spread tuna mixture evenly over each slice of bread. Arrange tomato slices over tuna mixture and top with Swiss cheese.
  • Return baking sheet to oven and broil until cheese is melted, 3 to 5 minutes more.