I'm awaiting meeting with surgeon for gallbladder removal. Is it ok to have a few beers?

Sure. Just don't eat fatty snacks with your beer, such as nachos, cheese fries, guacamole, pizza, tacos, etc. You need to eat a low fat diet as long as gallbladder disease is an issue. If you do have gallbladder surgery, you would then be able to eat all foods once it's completed, contrary to what you may hear in the lay press. Good luck.