I suggest that the forbidden breakfast is tantamount to an eggs benedict, but with the hollandaise sauce replaced by a roux.
How about a Sauce Mornay?
béchamel (roux + milk) + egg yolks + cheese
Even easier - egg sandwich using a basic milk bread.
So eggs with white gravy? I think I’ve had that combo and it was pretty banging.
Add crawfish and you're really talkin
If it's forbidden, it is rather "eggs interdict".