In a medium sized pot, add quinoa and water and bring to a boil. Lower the heat and leave to simmer until the quinoa is fully cooked. Fluff with a fork and leave to the side to cool.
In a medium sized bowl, combine cooled quinoa, onions, fresh mint, fresh parsley, feta cheese, pomegranate seeds, radishes and lemon rind. Add lemon juice and olive oil. Season with salt and pepper.