I forgot to add that a part of my practice nowadays If a child doesn't come with much everyday food( healthy stuff) that I request( in a friendly way) families pack some more everyday food to broaden the choices for their child. I also link it to the educational program and document the children's learning around self care and wellbeing. After all, it's my responsibility to teach the children, the parents are adults and don't need me in their faces telling them what they can and can't provide for THEIR child to eat, that responsibility of deciding what food is provided falls squarely on the parents shoulders.
I'm glad DD's FDC educator feels the same, although DD only gets healthy foods in her lunch bag and if she gets a 'treat' it might be some multigrain organic zatar corn chips once in a blue moon because that's what I love to eat at the mo!