Ground Lamb and Pasta

2 tablespoons olive oil1 medium onion, diced1#189;pounds ground lamb1#189; tablespoons sea salt1 tablespoon pepper2 tablespoons ground cinnamon3 ounces (#189; a 6-ounce can) tomato paste1 pound spaghettini (thick spaghetti) or mostaccioli, cookedFeta cheese crumbles, for garnishHeat oil in skillet, saut#233; onion until soft. Add lamb, salt and pepper and cook until lamb is no longer pink, about 10-15 minutes. Drain off excess fat.Add cinnamon and cook 5 minutes more. Stir in tomato paste; mixture should resemble sloppy Joes. Toss meat with pasta, garnish with feta cheese.Serves six to eight.