How to measure weight - frozen vs. cooked

This may be a dumb question, but I'm trying to make sure I am learning to track everything properly....

I have a few staples (frozen shrimp, frozen veggie mix etc.) that are cooked from frozen, and I'm wondering if the weight/volume of the serving size is measured before or after cooking?

1 cup of frozen vegetables is obviously much different than one cup of cooked vegetables!

I followed a weighed and measured food plan for 5 years and we weighed everything thawed and/or cooked.

I measure it cooked cause that is how I eat it! I have seen this question on here several times so it is not a dumb question. *_*

Thank you both! I thought so as well, but I wanted to make sure as it would definitely make a big difference ;)