You are doing a good job of feeding the kids well and healthy, don't lower your standards for one picky child....just keep serving her what the others are eating and don't get upset. She will def not die if she doesn't eat lunch every day, and the stress you feel is def the hardest part, just let go and let her be hungry if she won't eat the healthy food you offer. I have asked parents if they would like to provide the meals for kid with "picky" attitudes at the table, but to be quite honest, sometimes that just causes more grief on your part. I would continue to offer her the same foods as the rest and if she goes without lunch, snack time is right around the corner.....the only thing I would do is give her very little to start, that way when she doesn;t eat the food, you won't be as upset having to throw it away!