Notbitter - I admit I am very surprised that a teacher would say something like that and I think you are right to have a meeting. If the teacher has a religious view, it's fine to express that, but children need to be told that it's not fact, it's the teacher's viewpoint. My first thought was that your child was in a Catholic school, but clearly that's not the case. Small children do absorb things and often they confuse what's being said, so it is prudent for you as a parent to clarify what the teacher did say, and if in fact she presented an opinion as fact, this needs to be addressed.
My grandkids are always asking me the same kinds of questions, but they are getting the god/creation propaganda from their father, not the school. I try very hard to counteract that by reinforcing that, "yes, some people believe that. But here's what I believe and here's some evidence for you to think about" to encourage critical thinking. Children are impressionable and they are in the process of forming their worldview, so it's important as a parent to know what things they are being told in the schools and elsewhere. You are doing the right thing.