In a large saucepan, bring water to a boil. Add quinoa. Reduce heat; cover and simmer until liquid is absorbed, 12-15 minutes. Remove from the heat; fluff with a fork. Transfer to a bowl; cool completely., Add the beans, cucumber, red pepper and parsley. In a small bowl, whisk the remaining ingredients; drizzle over salad and toss to coat. Refrigerate until chilled.