Tomato Mozzarella Flatbread (panera Copycat)

"Panera Bread has changed the way they make their popular Tomato Mozzarella Flatbread, but now you can make the original version at home. This panini style sandwich is made with Roma tomatoes, fresh Mozzarella cheese, arugula, Naan bread, homemade pesto and an easy tomato sofrito. Grill this sandwich on your panini press, griddle or on a stove top grill pan. This recipe makes two sandwiches, but you won't be able to get enough of this cheesy goodness and will definitely want to double and tripe this recipe!"