01 -
In a medium bowl, combine softened butter, grated Parmesan, garlic powder, and Italian seasoning. Mix until fully blended and set aside.
02 -
Lay all bread slices flat. Spread approximately 1 tablespoon of pizza sauce evenly over each slice. Place a slice of mozzarella cheese on each bread slice. On two slices, sprinkle 2 tablespoons shredded cheese and arrange 8 pepperoni slices on top. Close sandwiches by pairing each plain slice with a topped slice, pressing gently together.
03 -
Spread a generous layer of garlic butter mixture onto one side of each assembled sandwich.
04 -
Heat a large skillet over medium heat. Place sandwiches, buttered side down, into the pan. Spread remaining garlic butter on the top side of each sandwich. Cook for 3–5 minutes per side until exterior is golden brown and the cheese has melted.
05 -
Serve sandwiches hot, with additional pizza sauce for dipping if desired.