Vegetables in Spiced Broth over Couscous

I always throw a few carrots and celery stalks into this lightly spiced broth for flavor, but you can substitute with or add to the other vegetables pumpkin, squash, cauliflower, parsnips, or fennel. This recipe is a good way to use up the odd leftover raw vegetables in your fridge. I serve them scooped over heaping bowls of plain couscous for a hearty side dish or vegetarian entrée.