Does Courteney Cox want to try her hand in the kitchen? The “Cougar Town” star just taped an appearance on “The Next Food Network Star” with celebrity chef Bobby Flay. A spy told us, “The show is filmed on the same lot as ‘Cougar Town,’ so it was easy for her to come over and appear as a guest judge.” The actress, 46, was photographed last week with a walking stick on her Los Angeles set after she had some minor knee surgery. Her rep didn’t get back to us.