What can one eat after gall bladder surgery?

I may have to have gall bladder surgery. I need to know what I can eat now and after the surgery.

I am having a tough time finding food that I can eat at this point. I am basically skeptical of everything although I have been eating a lot of unsweetened applesauce and bouillion broth. Is creamy Jello a no-no? Is dairy of any kind a no-no? I just don’t know. Thank you all in advance.