Tagine Berber

Name: Tagine Berber
Ingredients: 4 tbsp. olive oil; 2 lb. boneless lamb shoulder, cubed; 2 medium onions, peeled and quartered; 2 tsp. ground cumin; 1 ⁄ 2 tsp. ground cinnamon; 2 tsp. sweet paprika; Pinch saffron threads; Salt and freshly ground black pepper; 2 medium Yukon gold potatoes, peeled and quartered; 1 large carrot, peeled, halved crosswise, and quartered; 1 large zucchini, halved crosswise and quartered; 2 small white turnips, peeled and quartered; 1 medium green pepper, trimmed and cut lengthwise into 1'' strips; 1 medium tomato, thinly sliced