Couscous Tabbouleh

Combine couscous, oil, salt and pepper in a large bowl. Pour water over the couscous and cover. Let stand until the water has been absorbed, about 5 minutes. Uncover and fluff with a fork. Let cool completely.

Chop parsley, mint and scallions in a food processor fitted with a metal blade. Add them to the couscous, along with tomatoes and lemon juice. Toss to blend. Gently stir in feta, if using. Serve at room temperature or chilled.