Step 1
Preheat oven to 375. Place the pancetta slices on a parchment lined rimmed baking sheet. Bake until golden brown, turning over once. This takes approximately 15 minutes.
Step 2
While the pancetta crisps, slice the tomato and mozzarella.
Step 3
Make a spread by combining the mayo, parmesan, balsamic vinegar and salt & pepper to taste. Refrigerate until you assemble the sandwiches.
Step 4
When the pancetta has cooked, drain on paper towels to remove excess grease. Toast the King's Hawaiian bread slices.
Step 5
Spread the balsamic mayo on the bottom slice of toasted King's Hawaiian bread. Top with two pieces of the fresh mozzarella.
Step 6
Drizzle half of the olive oil on top of the mozzarella, then top with 4 slices of the pancetta. Top the pancetta with the sliced tomato and lettuce. Spread the pesto on the top slice of toasted King's Hawaiian bread and place on top.
Step 7
Repeat the process for the second sandwich. If desired, cut each sandwich in half with a serrated knife.