What did Jane Austin mean by saying going from a plain dish to a ragout?

Jane Austen's phrase "going from a plain dish to a ragout" metaphorically describes a transition from something simple or unremarkable to something more complex and flavorful. This expression highlights the idea of elevating one's experiences or social status, suggesting a shift toward sophistication and richness in life. In the context of her works, it often reflects the nuances of social interactions and the pursuit of romantic or personal fulfillment.