Goat cheese royale definition?
It appears that a &quot;cheese royale&quot; is a fancy name for a custard made with combinations of soft cheeses, cream, eggs and seasoning. From this recipe:

Whisk together the cream and eggs and season with salt and pepper.
Fill the potatoes with the custard mix and sprinkle chives on top.

As for using other cheeses, I really don't see why not, or why it would be called something different. I would be curious to try it with a sharper cheese for a stronger taste, perhaps make a Spanish/Mexican version (kind of like cheese salsa) or with some finely minced onion and garlic. Use your imagination!
From looking on Google Images for &quot;goat cheese royale&quot; it appears it is most often used in two ways:
As filling for something like potatoes:

As topping for burgers and such:

I looked without the &quot;goat&quot; but all I got was pictures of cheese burgers and references from Pulp Fiction!