Osso Buco with Gremolata

Name: Osso Buco with Gremolata
Prep time: 10 min
Cook time: 2 h 15 min
Total time: 2 h 25 min
Cuisine: Italian
Ingredients: 2 1/2 -3 pounds veal shanks; 1 teaspoon Kosher salt; 1/2 teaspoon Ground black pepper; 1/4 cup all purpose flour; 2-3 tablespoons Olive oil (for drizzling); 1/2 red or yellow onion (diced); 2 celery stalks (cut into 1/2 inch slices); 2 medium sized carrots (peeled and cut into 1/2 inch chunks); 2 garlic cloves (chopped finely); 2 tablespoons tomato paste; 1 cup red wine; 2 sprigs fresh rosemary (tied in a bundle with the thyme); 3-4 sprigs fresh thyme (tied in a bundle with the rosemary); 2 bay leaves; 2 cups beef stock (low sodium, preferably); 1 pint mushrooms (button or cremini, quartered); 3/4 cup fresh parsley (leaves finely chopped); 1 garlic clove (grated); 2 tablespoons lemon zest (from about 1 lemon)