In a 2 1/2-quart saucepan, cook the quinoa in water as directed on the package and cool.
In an 8-inch nonstick dry skillet, cook the corn over medium-high heat for 4 to 5 minutes or until roasted, stirring frequently. Cool.
In a large bowl, beat the olive oil, sour cream, lime peel, lime juice, salt, pepper and cayenne pepper until blended. Fold in the cooled cooked quinoa, roasted corn and all remaining ingredients until blended.
Cover; refrigerate for at least 1 hour or until chilled.