They eat it surprisingly well, and since it is very convenient, many people feed them vertebrate meat. It is however a very unnatural food, very incomplete nutritionally since you are only feeding muscle, they can´t really digest it properly and it is very caloric (and so it can rapidly cause obesity).
I would not feed any vertebrate meat except perhaps WHOLE, small fresh-water fish, and only as an exceptional treat.
Two pinkies a month could be a bit too much, you should monitor their weight.