So I decided it was time to vary it all a bit. I dug out a more interesting recipe for basically a courgette and hummus pie. It was supposed to have olives, which I didn't have, and filo - I had to substitute shortcrust. But I basically followed the recipe (which was touted as one 'even dedicated carnivores are guaranteed to love').
It was delicious and a great success with my children, two of whom I'd say are incredibly fussy.
So, that's a new one we'll be having again. But perhaps not again and again and again! :)