Ingredients
Method
Step-by-Step
- Drain the tuna very well, pressing out excess liquid if needed. Flake it into a medium bowl.
- Stir the mayonnaise, celery, red onion or shallot, pickle, Dijon mustard, lemon juice, parsley or dill, kosher salt, and black pepper into the tuna. Taste and adjust the seasoning.
- Butter one side of each bread slice. Place two slices butter-side down, divide the tuna salad between them, and top each with two cheese slices.
- Close the sandwiches with the remaining bread, keeping the buttered sides facing up. Heat a skillet or griddle over medium-low heat.
- Cook the sandwiches for about 3–4 minutes per side, pressing gently, until the bread is deeply golden and the cheese is fully melted.
- Rest the sandwiches for 1–2 minutes before slicing and serving. This brief rest helps the filling settle without taking away the crisp texture.
Notes
Thoroughly drain the tuna to prevent watery filling and soggy bread. For a richer savory taste, use oil-packed tuna and reserve 1 teaspoon of its oil to mix into the salad. Lightly toast the bread before assembling, or add a thin layer of sliced tomato between the tuna and cheese for extra texture.
