Food/dishes that are meaningful in Taoism?

Basically, are there any specific/traditional dishes/food that have a 'special' meaning to Taoism/Daoism?

Just the full dishes before you eat and empty ones after you eat.

Yup, full dish empty dish is about it: you'll have to look around for another dogma if you want all sorts of outside rituals, symbols and publicly recognized symbols which allow you to show off your spiritual vanity and pride.

Any meal or food becomes meaningful if you bring in your energy, attention and awareness. Turn the preparation and cooking of the food into a meditation and keep your awareness on your meal while eating and even a cheese sandwich made with stale bread and a glass of plain water becomes food for the Gods.