I had a Muslim au pair for while. I didn't know she was Muslim when I recruited her, and found out when she told me she did not eat meat.
It is totally not a problem having a Muslim in my household (we like people of faith), but I was concerned about having to provide vegetarian food. On further questioning, it appeared that all fish was fine, and that she could eat Halal meat. Fish was no problem for me to provide, although I was a bit worried about the expense of us all having fish for several meals, and Halal was not available in our local supermarket. I, at the time, worked in a Muslim area, and would occasionally go to a Halal butcher to get her a few cuts of meat - she didn't ask for this, and it was pretty much a 'gift'.
Halal slaughtering methods do not sit well with me, but I put the needs of humans ahead of those of animals, so was happy to go along with it for her.