PepsiCo’s Frito-Lay is inviting chip fans to vote on four finalists in its “do us a flavor” competition. The finalists are: kettle cooked Greektown gyro submitted by Texas-based James Wagner of the Air Force; wavy West Coast truffle fries from Angie Fu of California; Southern biscuits and gravy from travel agent Hailie Green; and New York Reuben from Pennsylvania restaurant manager Jeff Solensky. Frito-Lay is offering $1 million to the inventor of the winning flavor. More