I couldn't find any relevant information about a restaurant called "Hearst Castle." However, I found that Hearst Castle is actually a historic mansion located in San Simeon, California, that was once the home of newspaper magnate William Randolph Hearst.
If you're looking for dining options at Hearst Castle, it's worth noting that there are no restaurants within the castle itself. However, the Hearst Ranch Winery and restaurant, also located on the same property as Hearst Castle, offers stunning views of the surrounding landscape while serving up American cuisine with a focus on local ingredients.
If you'd like to learn more about dining options in the area, I can suggest some alternatives.