01 -
Spread pesto evenly on one side of each slice of sourdough bread.
02 -
On four slices of bread, layer the dried mozzarella, chopped sun-dried tomatoes, and cooked bacon.
03 -
Place the remaining bread slices atop the layered ones, ensuring the pesto side faces inward.
04 -
Lightly butter the top surface of each sandwich to enhance browning during grilling.
05 -
Cook sandwiches in a skillet over medium heat, butter-side down, until golden brown and cheese melts, approximately 5 minutes per side.
06 -
Serve immediately to enjoy optimal texture and flavor.