Black Bean and Couscous Salad with Jalapeño-Lemon Dressing

Prepare couscous according to package directions, omitting salt and fat.

Spread couscous on a baking sheet in a thin layer; let stand 5 to 10 minutes or until completely cooled.

Meanwhile, combine lemon rind and next 6 ingredients in a small bowl; set aside

Combine couscous, beans, and onion in a large bowl. Add reserved lemon mixture and toss gently.