Inspiration comes in many forms. In the case of one of New Orleans’ most anticipated culinary events of the year, the combination of a beautiful Friday fall afternoon and a plate of Acadiana’s indigenous rice-stuffed sausage served as the collective muse for three of the country’s most lauded chefs. Two years ago, Emeril Lagasse was hosting a radio show from his eponymous restaurant in the Warehouse District to promote Carnivale...