Translation of "Filling" in Chinese

What is the filling in these dumplings?

这饺子是什么馅的啊？

He got his car washed at the filling station.

他的车在加油站洗过了。

A child is not a vessel for filling, but a fire to light.

孩子不是该被填满的花瓶，而是该被点燃的火。