There are DEFINITELY better sources of fat. I'm sure the fat in cheese is fairly processed. Plus dairy doesn't agree w/ me much these days. If I use any cheese, its soy cheese and not much of it. YOu are better off using flax seed oil (e.g. Udo's Choice) or even extra pure virgin olive oil or something like that. You are following a fairly low-fat diet, so make sure the fat you are using is very good quality.
Just my $0.02.