I don't think I have ever dreamed about food. As far as I'm aware it's never even featured in any of my dreams. And although I've come close (95%) to getting laid in my dreams, that's never happened either because I always wake up when I'm just about to do the business.
I've had recurring themes in my dreams my whole life though:
1) Being in a large communal house full of my friends past and present. Or sometimes the house contains people I don't know and I kind of feel unwelcome. I bet I've dreamed about this large house thousands of times.
2) Discovering a door in my apartment that I'd never seen before and opening it to find a whole new section with lots more rooms that I didn't know I had. I don't know if this is an expression of frustration because I've always kind of lived in small apartments, but again I have had this dream thousands of times over the years.
3) Having the sudden realization that flying is just a case of jumping up into the air and not coming down. Or I do come back down, but very slowly. Once I've had this revelation, I spend the rest of the dream either flying or bouncing hundreds of feet in the air.
4) Walking past a room in my apartment and having a feeling of dread that someone is in there. I'm almost too scared to look, but eventually I do, and there's some very scary dude sitting on the sofa and I get this almost indescribable feeling of terror. Sometimes the terror is so intense that gravity reverses and I float up to the ceiling like a helium balloon. Go figure.