I think it's "grillade" and it's indeed designating grilled meat
GRILLADE, noun, feminine A. The act of grilling. "One also had to endure the smell of the kitchen, the heavy scent of wine in the sauces, the nauseating grilling of onions in the frying pan" (HUYSMANS, Marthe, 1876, p. 62).
http://stella.atilf.fr/Dendien/scripts/tlfiv5/visusel.exe?12...
Also anecdotally as a French native, grillade = meat for me.
However what's discussed here is a case of legislators deciding what shape language should take, not usage !