1 large piece of cooked cod (or 2 small pieces)5.3 oz (about 1 cup) of day-old bread3/4 to 1 cup of milk (depending on the bread you are using)1 tablespoon of olive oil2 onions2 cloves of garlic, chopped2 bay leavesSalt (to taste)1 large carrot, grated3.5 oz (about ⅜ cup) of plain Greek yogurt or light cream or soy cream or oat cream2.1 oz (about ⅔ cup) of shredded mozzarella cheese