Would you eat expired lentils or beans?

Greece
September 28, 2010 3:56am CST
I've got this sealed pack of lentils that are supposed to have expired 6 months ago. I am sure that I would have cooked them and eaten them if I hadn't noticed the expiration date, since they look fine. Do you think it's safe to cook them now? Will they taste well? I once tried to cook dry beans from an opened pack and even though they shouldn't be expired, I was boiling them for hours and they were still rock hard. But how about the lentils?