I use the bare minimum in "dishes". Pot and insulated cup. I lick clean, then boil enough water to make a cup of tea and drink the mixed leftovers. You might want to strain the solids if they don't work the the tea - I don't generally have a problem.
Who needs to toss out the grey water?
Who needs soap?
Who needs a pot scrubber?
Who needs to waste or pollute?