Preheat oven to 425°F and toast garlic toast slices for 7 minutes.
Spread spaghetti sauce on 4 slices of garlic toast.
Layer 6 pepperoni slices on each sauce-covered toast slice.
Place a slice of mozzarella cheese on each toast slice.
Add another layer of pepperoni slices and mozzarella cheese on top.
Combine with the remaining 4 slices of garlic toast with spaghetti sauce spread, creating sandwich pairs.
Grill the sandwiches on a skillet or griddle for 3-4 minutes on each side until cheese is melted and sandwiches are heated through.
Ensure sandwiches have a golden-brown exterior and gooey cheese.
Serve hot and enjoy!
