You're not a child. You don't need to snack. Especially if all you're doing is sitting at a desk all day. It's good to get out of the habit of eating just for the sake of putting something in your mouth, instead of because you're genuinely really hungry.
If you really really need snack food, just cook up some hardboiled eggs or eat some (non-pureed) vegetables or something. That's a damn sight better than eating baby food, I would think.