Hi Sosick,that makes a nice stock,and if you have any water left over from steaming vegetables you can add this &some herbs,maybe a little seasalt,I used to do that (before I found the stock in above post!) and if you have an ice cube tray ,it's a convenient way of popping them out as you need from the freezer.
Except of course there's also the issue of liquids in plastic...
Is there anything safe!!!
Sunflower