Well that depends on where the date takes place. If you are meeting in a restaurant, the natural subject will be about food and then can be extended to do you enjoy cooking / are you a fussy eater etc. This can then naturally lead onto family e.g. who is the best cook in your family etc. This then naturally leads onto many other subjects, e.g. where do your family live, how often do you see them etc.
Always best to start off with light-hearted subjects such as music and film; subjects like politics and religion should be left until you both feel comfortable enough.
Good luck with your date!