I kinda already literally wrote that book. The book is called ‘Eating Aliens,’ available on Amazon and in fine bookstores everywhere. More of a food/ecology/hunting narrative than a cookbook per se, but still.
“someone really needs to create an invasive species “guilt-free” cookbook with recipes for Caribbean lionfish, American kudzu, English Japanese knotweed, Australian rabbits and European marbled crayfish.”
This could also help revive some medieval recipes, as ground crawfish was used to bread meat until it was driven to extinction in many European streams.
Regarding how they taste, this is the Georgia crayfish. It’s been eaten in the states for generations. They are considered too small for most European crayfish dishes but they are great in a traditional southern crayfish boil.