Lamb And Sausage Couscous 3 lb lamb shoulder cut into 2-in - cubes 1/2 t salt,or to taste 1 black pepper,Freshly Ground 1 T olive oil 1 md onion,quartered 4 md carrots,peeled and cut into - 1/2-i 2 celery stalks cut into 4 -pieces 1/4 c tomato paste 3 T all-purpose flour 1 c dry white wine 6 c low-sodium chicken broth -=or=- wate,r 1 t cayenne pepper 1 T cumin,Ground 6 spicy sausages preferably -merguez-,style 2 md zucchini cut into rounds -1-in thic,k 1 1/2 c couscous PREHEAT OVEN TO 325F. Pa