Instructions

In a large bowl, whisk mayonnaise, lemon juice, and red pepper flakes (if using). Drain tuna, then add to mayonnaise mixture. Using a fork, break up tuna into flakes. Add celery, pickles, onion, and parsley and toss to combine; season with salt and pepper. Spread butter on one side of each bread slice. Top an unbuttered side with about 1/2 cup tuna salad, 1 to 2 slices tomato, and 2 slices of cheese. Top with another slice of bread buttered side up. Repeat with remaining sandwiches. Preheat a large nonstick skillet over medium heat. Add 2 sandwiches, arranging cheese side closest to pan, and cook until golden brown, 2 to 3 minutes. Flip and continue to cook until golden brown on the other side and cheese is melty, 2 to 3 minutes more. Transfer sandwiches to a plate. Repeat with remaining sandwiches. Serve warm.

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  • mayonnaise Notes: 1/3
  • Juice of 1/2 lemon
  • tsp. crushed red pepper flakes Notes: 1/2, optional
    Optional
  • cans tuna Notes: 2, 6-oz.
  • celery ribs Notes: 1, finely chopped
  • dill pickles Notes: 2, finely chopped
  • finely chopped red onion Notes: 1/4
  • tbsp. finely chopped fresh parsley Notes: 2
  • kosher salt
  • Freshly ground black pepper
  • tbsp. unsalted butter Notes: 4, softened
  • Bread Notes: 8 slices, such as sourdough
  • tomato Notes: 1, sliced
  • cheddar or American cheese Notes: 8 slices