Yea, I just give Jacob what we have. At the moment, I think that up at about 5.30pm... but a little planning wouldn't go astray, I'm just a bit tired at the mo. It's only occasionally that what we have isn't suitable - when we have pies and chips, for example, I'm a little reluctant to start him down those evil ways so early
In those cases I'll defrost a couple of frozen cubes of leftovers for him, or resort to a jar (I love having jars handy, and while it's obviously not a long-term solution, they're brilliant when you're at a loss for what to feed him or out).
Jacob's another soup fanatic... don't know what it is, because I blend them with bread so they're the same consistancy as his usual food, but I've never known him to turn up his nose at soup.
I tried a curry that was just a little too hot for him the other day, and the poor kid had tears running down his face. He kept coming back for more, though - I had to stop him in the end because I felt too bad about it