# What You'll Need:
→ Tuna Salad
01 - 1 can (5 oz) tuna, drained
02 - 2 tablespoons mayonnaise
03 - 1 teaspoon Dijon mustard
04 - 1 celery stalk, finely chopped
05 - 1 tablespoon red onion, finely chopped
06 - 1 teaspoon lemon juice
07 - Salt and freshly ground black pepper, to taste
→ Sandwich
08 - 4 slices sandwich bread (white, whole wheat, or sourdough)
09 - 4 slices cheddar cheese
10 - 2 tablespoons unsalted butter, softened
# How-To Steps:
01 - Combine drained tuna, mayonnaise, Dijon mustard, celery, red onion, lemon juice, salt, and pepper in a mixing bowl; mix thoroughly.
02 - Place bread slices on a work surface. Evenly spread tuna salad onto two slices; top each with two slices of cheddar cheese.
03 - Cover each with the remaining bread slices to create two sandwiches.
04 - Spread softened butter over the outer sides of each sandwich slice.
05 - Preheat a nonstick skillet or griddle over medium heat.
06 - Place sandwiches buttered side down on the skillet; cook for 3 to 4 minutes, pressing gently until golden brown.
07 - Flip sandwiches and cook the other side for 3 to 4 minutes until bread is golden and cheese has melted.
08 - Remove from heat, slice sandwiches in half, and serve while hot.