I had the Lap Band procedure and used the dining plan in April 07. I too, can only eat small portions. I had to take the dining plan because we were all in the same room, and it seemed like a good deal for the rest of my family. For sit down meals, I ordered what I wanted and ate what I could. I mostly got smooth things like soups for appetizers and custard type desserts, limiting the more solid items for entrees. With the Lap Band, I am pretty limited in textures of foods, so no steaks or burgers, mostly fish, entree salads, or risotto, something like that. I did not care about leaving food on my plate and enjoyed whatever I wanted.
For counter service meals, I sometimes ordered a full meal and ate some and shared the rest or if someone else in the group was not very hungry and ordered something appropriate for me, I would have a small amount of their meal. Also many places had soup or chili for a snack credit which made a great lunch for me.
I did obsess before the trip about what I would do with all the food off the dining plan but it really was not big deal. Soups and custards are not very filling even with weight loss surgery, they basically go down as liquids, and making smart entree choices worked for me. I did in fact lose over five pounds in the nine days I was there and had some amazing meals in the process.
Enjoy!
Trish