Once-a-month Savory-Sour Vegetarian Noodle Soup

On the fifteenth of every month in the lunar calendar, when the moon is full and at its roundest, my family has a tradition of being vegetarian. This tradition originated from my grandmother, a devout Buddhist. She and many of the faith believe that if you are Buddhist and not completely vegetarian, it is important to give up meat for one day of the month to reconnect with the ideal behind Buddhism, which is to be compassionate to all living beings including animals. This is our family vege