Review of In-N-Out Burger

So everything is GF except the buns. But they use the serving spoon for the sauce on the buns so beware of CC there. I always let then know I need my burger cooked desperately to avoid CC/crumbs from buns. The usually get me the manager who cooks my burger specially. I order a double-double (2 patties/2 slices of cheese) animal style (cheesy onions, I think) and protein style (lettuce wrap/no bun, there are no GF buns) with no sauce on the burger, but sauce in the packet (it's like thousand island kinda).

Celiac friendly?

Yes