Slow Cooked Beef Ragu

Name: Slow Cooked Beef Ragu
Prep time: 10 min
Cook time: 3 h
Total time: 3 h 10 min
Cuisine: European, Italian, Mediterranean
Ingredients: 3 tablespoons olive oil; 2 large onions; 3 large carrots; 2 stalks celery; 5 garlic cloves; 750 grams beef chuck steak; 125 ml tomato paste; 100 ml red wine; 600 grams passata; 450 ml beef stock; 2 springs of fresh rosemary; 10 springs of fresh thyme; 2 dried bay leaves; salt and pepper to taste