In agreeance with the last few posters on this one. I make it, I serve it, you eat or you don't, your choice. And that is that. I used to stress big time. I had a little boy who would cry hungry when mom/dad picked up at the end of the day. I could tell that Mom, in particular, thought that I must be starving her darling boy. So I started to say "I bet your tummy is so hungry because you chose not to eat snack today! Tomorrow, make sure you fill it up when we eat. *happy Daycare-lady smile plastered on* But I can't fight it if Mom then says, "Oh, I have some licorice strings in the car, baby!! You can eat some of those."
I am all for hiding veggies and fruits if that is what you are going to do anyway. But I am not sure doing so, just for this one particular child, really helps anyone. Then the rest of the daycare kids are not seeing all the healthy foods that they are eating, right? I would continue to offer balanced choices. If she eats, she eats.
Unfortunately, you have her for one meal and one snack, 5 days a week. Mom/Dad have her 2-3meals and 2 snacks a day, every day. You can only do what you can do. Sounds like they have made their choice.