You can find ras el hanout
, a Moroccan spice blend, at zamourispices.com. The tagine embodies the cooking of the Maghreb—typically Morocco, Tunisia, Algeria—where it's made in an earthenware pot with a conical lid. This vegetarian version is made in a skillet.
Preheat oven to 400°. Rub body and neck cavities of chicken with salt; sprinkle skin with salt. Stuff cavities with olives, garlic, lemon zest, shallots and ginger. In a small bowl, combine olive oil, lemon juice and ras el hanout; rub all over chicken breast and legs.
Truss chicken. Place on a rack in a roasting pan; roast until an instant-read thermometer inserted in thickest part of thigh registers 160°, 60 to 70 minutes.
Transfer to a platter. Let rest 10 to 15 minutes before carving. Serve with vegetable tagine