Interesting thread!
I am "eating primal" and my lunches typically consist of a huge salad. Been eating huge salads for a couple of years now, actually, and when I got sick of them I would occasionally have a sandwich or pasta. No more. So I've been trying to figure out what to do. Soup seemed easiest, but I was usually never satisfied eating just soup.
Well, this week I made a soup that satisfied me. I ate a serving for dinner one night and ate it two days for lunch this week. In fact, I ate my lunch about three hours ago and am still content.
I think the difference was to add plenty of fat (I always used lots of veggies and lean meats in the past). This time I used olive oil, plenty of butter, and added heavy whipping cream towards the end. Don't know the calorie count, though, because I don't track those.