Place the chicken or vegetable stock in a medium pot over high heat and bring to a boil. Reduce the heat to medium-low, add the farro, and stir the mixture. Simmer for 12 minutes.
While the mixture is cooking, add the water to a medium pot and bring to a boil, then add the green beans and cook for five minutes until tender. Remove and drain the water, and set aside the green beans until ready to use.
When the farro is done cooking, place it in a large bowl and add the green beans to the top. Mix your dressing ingredients together and pour it over. Garnish with fresh red onion, cherry tomatoes, and herbs as desired. Mix well, and enjoy!