The Onam Sadhya is the undisputed heart of Kerala's grand harvest festival. More than just a multi-course meal, this elaborate vegetarian feast is a culinary symphony served on a banana leaf, designed to honor the memory of a golden era under the mythical King Mahabali. With its 26-plus dishes perfectly balancing the six fundamental tastes, the Sadhya is a deeply cultural experience that embodies prosperity, community, and the very spirit of Onam.