Classic Tuna Melt

Finely dice the celery, red onion, and pickle, then fold together with the drained canned tuna, mayonnaise, salt, and black pepper

Lay out eight slices of bread, top each with cheddar, divide the tuna mixture among four slices, and close the sandwiches

Melt butter in a skillet over medium heat and toast sandwiches for 3-4 minutes per side, adding more butter when flipping, until golden and the cheddar is melted

Repeat with remaining sandwiches and butter

Serve warm, cut in half