Mix the egg with the basil and parsley. Season with salt and pepper.

Sift the garlic salt into the bread crumbs.

Lay out two slices of the bread. Remove the crusts and cut into a rectangle or square. Place two slices of mozzarella on each slice of bread. Cover with the remaining matching slices of bread. Press down to compact. Try to get the edges of the bread to stay together, creating an enclosed mozzarella sandwich.

Now, dredge the sandwiches in the egg mixture and then into the bread crumbs. Be sure to coat the bread entirely with the egg and bread crumbs. Let sit 15 minutes.

Add the oil to a medium skillet on medium heat. When the oil is hot, about 375 degrees, place the two sandwiches into the oil and cook until golden brown on one side, then flip, and cook until golden brown on the other side. The sandwiches are best when crisp on the outside and the mozzarella has just begun to melt on the inside.

When done cooking, remove from the oil and place on a cooling rack for one minute. Then cut each sandwich into 2 or 3 triangles.

Serve while hot with a bowl of the marinara sauce for dipping.