DALLAS, TX, 2015-4-2 — /EPR Retail News/ — Making a sandwich is easy, right? Two slices of bread, meat, cheese and sauce … done. Creating the two new7‑Eleven® Melt artisan sandwiches was a little more involved. Like evaluating 20 different bread options … measuring 1,000 different buns … creating 75 prospective sauces … testing multiple cheese varieties…