How to Make It
Preheat oven to 400ºF. On a large baking sheet, toss carrots, shallots, oil, cumin, salt and pepper. Transfer half to a second sheet; spread evenly.
Roast, stirring once, until tender, 35 to 40 minutes. Sprinkle with orange and lime juices and cilantro; toss. Serve hot or at room temperature. Sprinkle with nuts before serving, if desired.