Idli Upma is a popular South Indian breakfast dish made with leftover idlis. The idlis are crumbled and then sautéed with onions, tomatoes, and spices to create a flavorful and hearty dish. It is usually served with coconut chutney or sambar. Idli Upma is a quick and easy way to use up leftover idlis and turn them into a delicious and satisfying meal.