The personal chef field is a possibility if you have access (i.e. live near) the type of people that would use one. They don't have to be "rich"... If you could target some working upper middle class that are busy and bring them a taste of personalized cooking, I think it could do well.

Start with a simple search on Google (or whatever) for Personal Chef. You'll see some "professional associations" that can give you additional information.

My only caution is that some of the associations look kinda "thin" in offerings for what they want to charge for training and tools. So do some research.

Another suggestion I usually make is to start a website about what you want to do. In your case, you could easily setup a blog on Blogger. Take pictures of the food, include the recipes and try out "cooking for a living". The idea isn't to become an overnight web star with the site... but to see if the idea of cooking and posting makes you more interested in the field... or if it becomes a burden. If it continues to drive the fire... then you are onto something and you move onto the next step. If you end up cringing at the thought of having to cook and document another meal... then maybe it's not a career to pursue.

I've done this myself at http://makoskitchen.com so I can speak from some experience.

Good Luck

Marlin Creek - Idea Seeds
http://marlincreek.com