There's a cookbook called Hungry Girl that I bet is good. I don't actually own it. But she has a website that I like. Corrine wrote a review of the cookbook in the Gastric Bypass Nutrition section not that long ago, if you want to look for it.
There is a great blog with recipes you might want to check out. It's
theworldaccordingtoeggface.
And check out the recipe section in the Nutrition forum here on TT. I've found lots of yummy things there.
Kelly