I always tell parents that this is an interview for them and for myself. They want to see if I am a good fit for them, but I also need to do the same for me and my daycare. I serve many veggie options as my son is vegetarian so I am very familiar with making balanced animal free dishes and all my food is natural, ABF and organic when available without having to sell one of my organs

If I was in your shoes I would say that while you would love to care for her child, this is the way you run your daycare and it seems like its not what she is looking for. I think if you acknowledge the fact that as a mother she shouldn't have to make allowances for her beliefs and if she wants her child to eat a certain way, then she should find someone who is able to accomodate this requirement. She should do that rather than making sacrifices that she wouldn't be completely comfortable with. I think she will respect you more for it and may very likely refer you to others knowing that you are kind and caring and that your number one priority is for the child even if it means they don't come to you. This is what I would do.

As for the microwave, you dont need one. You can put everything in baking dishes to reheat in the oven on low. My microwave broke about 4 wks ago and I've just managed to adjust to not having one. Sad but true

I wouldn't take the child on. It isn't fair on you or her. Definitely not a good fit.