Cheap but filling breakfast food?

Can anyone recommend a cheap but very filling breakfast food? I usually eat toast and muesli for breakfast and although it feels good at the time, by noon I am always utterly starving. Ideally I'd like to be able to not be crying out for food or a snack from 11.00 to 13.00 or until I have lunch. So preferably I'd like to be "stuffed" after breakfast...

Also, I should say that I live in Europe so things that are really cheap in the US may not necessarily be cheap over here...

Thanks for any help.