OK, so it wasn't really that spicy but he knew it was called curry and he still ate it.
It was one of these which I bought on purpose because I knew it would be very mild, clearly for children, with "korma" written clearly on the front. DS has developed such a fear of spicy food that I thought we had to start with something. And he ate it! With peas and naan bread.
Anyone got a good "chicken korma for children" recipee so I can do my own!