Heat a medium saucepan over medium-high heat. Add quinoa to pan; cook 5 minutes or until toasted, stirring frequently. Add 3 cups water to pan; bring to a boil. Cover, reduce heat, and cook 15 minutes or until tender. Fluff with a fork; cool. Place quinoa in a large bowl. Add peas and next 6 ingredients (through tomatoes).
Combine rind and remaining ingredients in a small bowl, stirring with a whisk. Add juice mixture to quinoa mixture; toss gently to coat.