Comforting and healthy dish, another one of those Greek holiday reminders. I sometimes use dried butter beans, when I have time and have them in the cupboard. But they require soaking overnight as well as at least 1 to 1 1/2 hours cooking. I find the tinned variety is more convenient.
For a non-vegetarian option add some chorizo, or even some normal salami. I use reduced fat Lidl® Salami with Paprika. Delicious!!!