Osso Buco

Ingredients

• 2 None medium carrots, finely chopped
• 2 stalks celery, finely chopped
• 1 None large onion, finely chopped
• 2 cloves garlic, minced
• 8 None veal shanks
• 1/2 cup all-purpose flour
• 1/3 cup tomato puree
• 2 (13.5 oz) cans chopped tomatoes
• 2 cups beef stock
• 2 None bay leaves
• 1 lb cooked couscous, to serve
• None None lemon zest, for garnish
• None None fresh oregano leaves, for garnish