1 cup canned pineapple chunks packed in juice, drained and patted dry
How to Make It
Spread one side of each slice of bread with butter. Lay ham on unbuttered side of 4 of the slices. Top each with 2 slices of cheese and pineapple chunks. Spread unbuttered sides of remaining bread slices with mustard, if desired. Place those 4 slices, buttered sides up, on top of pineapple.
Place sandwiches in a large nonstick skillet over medium-low heat and cook, pressing down on them occasionally with a spatula, until golden on one side, 3 to 4 minutes. Carefully turn and continue to cook until golden on the other side, about 3 minutes longer. Cut each sandwich in half and serve immediately.