I'm not very scientific about it, if it's veggies or fruits, bring it on. Soup everyday, mushy foods only, like saucy stews (beans, cabbage), eggplant salad. Leave most of the meat aside, just enjoy the meat taste in the sauce. I realized it's almost the same thing.
As for the fruits, I'm trying to focus on pears, peaches, some prunes. I love water melon, that helps too I imagine. Figs, flax seeds, parafin oil - tend to forget about these.
Other than that I allow myself bread (quite a lot), some fries and once in a while some icecream. It's a liquid after all. I had a beer last night after a long long time, it seems to have helped :)
I also had a chocolate donut last week, paniced immediately and ate 2 pears and drank a bottle, it worked :)