In a large bowl, combine the grated cucumbers, plain yogurt, minced garlic, olive oil, lemon juice, chopped fresh dill, and chopped fresh mint. Mix well to combine.
Taste the mixture and season with salt and pepper to taste. Adjust the amount of lemon juice or garlic according to your preference.
If the soup is too thick, you can thin it out with a little water until you reach your desired consistency.
Cover the bowl and refrigerate the Tarator soup for at least 1-2 hours, or until well chilled.
Before serving, give the soup a good stir. If desired, add a few ice cubes to each serving bowl to keep the soup extra cold.
Garnish the Tarator soup with additional chopped fresh herbs and walnuts, if desired.
Serve the Tarator soup chilled as a refreshing appetizer or light meal on a hot summer day.