What's the best thing you've ever eaten?
Does she drool just thinking about mom's spaghetti and meatballs, or does she prefer an elegant meal at a five-star restaurant? Food is generally a safe topic because it's something most people enjoy. Pretty much everyone could name a favorite food or two, and it's a fun way to gauge how adventurous of an eater your date is. From there you can even ask if he likes to cook or what his favorite meal to make is. Is he a culinary genius or a macaroni and cheese kind of guy? Does she like to have big family meals, or does she prefer to order a pizza?
And don't forget your companion's answer to this question -- it could be instrumental in deciding where to go on your next date!