Rice noodle soup is a comforting and flavorful dish that is popular in many Asian cultures. Start by cooking rice noodles and then adding them to a pot of hot broth, along with vegetables, meat, and other seasonings. Let the soup simmer until the flavors meld together and the noodles become tender. Serve the soup hot, topped with fresh herbs and lime wedges. This dish is perfect for a cold winter day or when you're feeling under the weather.