Ingredients:

  • 2 (5 ounce/142g) cans tuna in water, drained well
  • 1/4 cup (30g) mayonnaise
  • 2 tablespoons (30ml) finely diced celery
  • 2 tablespoons (30ml) finely diced red onion
  • 1 tablespoon (15ml) lemon juice
  • 1 teaspoon (5ml) Dijon mustard
  • 1/4 teaspoon (1g) black pepper
  • Pinch of salt, or to taste
  • 4 slices sourdough bread (or your favorite bread)
  • 4 slices cheddar cheese (or your favorite melting cheese)
  • 2 tablespoons (30g) butter, softened

Instructions:

  1. Combine drained tuna, mayonnaise, celery, red onion, lemon juice, Dijon mustard, salt, and pepper in a mixing bowl. Gently mix until well combined.
  2. Spread softened butter evenly on one side of each slice of bread.
  3. Place two slices of bread, butter-side down, in a skillet. Top each with half of the tuna salad mixture and two slices of cheese. Top with the remaining slices of bread, butter-side up.
  4. Cook over medium heat for 3-4 minutes per side, or until golden brown and the cheese is melted and gooey. Press down gently with a spatula while cooking to ensure even browning.
  5. Remove from skillet, slice in half, and serve immediately.