I had some leeks left over from a shrimp dish I made this weekend (I even got pictures(!), though you probably won't see it til next week) and lo and behold, perusing my food blogs I find a recipe from Glorious Food and Wine for leek soup! This is another recipe that requires no modifications to be a single point for 1/4 of a serving. As I haven't made my soup yet, I have no idea how much it makes, but basically you can eat as much as you want.
Magical Leek Soup
From Glorious Food and Wine's blog
1 point per 1/4 batch: 77 calories, 2.5g fiber, .5g fat