Yeah, I totally agree! While I am guilty of it too, I am trying to not waste meat most of all. I only try to order what I can finish. If I order too little, I can just have something else or have more.
I think part of the problem in America is that the portions are so huge that we are used to them, now. Where as in the UK they are much smaller, I wish we could slowly decrease the size to something a little more healthy or at least have smaller portions available for other people. we focus so much on making everything so big that people tend to over eat. And yes, I am guilty of this too. I'm not trying to come across as the perfect person who doesn't over eat or waste. lol I'm just aware of it and have been trying to change that.