Does giving food to my christian maid please Allah or not?

I have a maid who is christian by faith. She is poor. I often give her food for her children and family, so that it provides her a little ease financially, and she doesn't have to cook after getting home after a day of work. I do this in order to please Allah. But I am confused about whether my deed will please Allah and earn me reward or not (God forbid). Please guide me. Thank you in advance.