Low impact dish washing strategy for Rockygrass?

I’m looking for suggestions to minimize impact with dish washing in the Riverbend campground. We’d love to cook up some delicious breakfasts, but don’t think my standard dish washing techniques for camping are gonna work here. Don’t want to strain water into the creek or do a dispersal into bushes, so sorta at a loss.

What should one do with dirty dish water here?

Thanks for any ideas!