I love slow roasted tomatoes, and have always made them in a baking dish. The direction to use a cast iron skillet here gave me pause - I'd always...

That is a really good question. I have made these tomatoes many, many times and loved the flavor, but maybe as AntoniaJames mentioned, my cast iron skillet may be very well seasoned. I'd never questioned it but would love to read any additional expert opinions about this. Learn something everyday!

I think it depends on how well seasoned the cast iron is. The acidity in tomatoes often reacts with cast iron, resulting in an unpleasant aftertaste. I would never slow roast in my cast iron pan for that reason. Some people say that doesn't happen as much is a very well seasoned cast iron pan. My Le Creuset braising pot, to my mind, works just as well. ;o)