Spread thin layer of mayonnaise on one side of each slice of bread
Spread thin layer marinara sauce on inner side of each slice of bread
Place 2 slices of bread, mayo side down in skillet over medium-high heat
Add the provolone cheese and top with mozzarella and 5 slices of pepperoni on each sandwich, then spread a thin layer of marinara on second slice of bread, and place on top, mayo slice up
Cook for about 2 minutes or until bread is golden brown, then flip and cook for additional 2 minutes, and add a little bit of Parm and Italian seasoning
Lower heat to medium, flip again, top with more Parm and seasoning, and cook for about 30 seconds
Flip one more time, and cook for about 30 seconds or until Parm is golden brown and crisp. and cheese inside is melted. Serve, and enjoy!
Notes
To ensure that cheese is melted, loosely cover sandwiches with plate or foil right before removing from griddle and serving