I'm french and I've lived my whole life in this country, and I'll admit, I'm puzzled with this beef stroganoff thing, it's has always seemed like a british dish to me, and between this post and the other one calling it "Bœuf stroganoff" I'm starting to suspect carbon monoxide poisoning

We do have similar dishes like the Bar en croute that Paul Bocuse was famous for but we don't really put beef in pastry unless it's been processed down to a paste that we call pâté (pâté en croute). And even then it's most often pork!