Freeze drying for ready to eat foods

Hello Everyone,

I have been reading up about freeze drying technique and I find it very interesting & good method for preserving food for a long time. Now, I wonder whether this method can be used to preserve ready to eat food and re-hydrate them before consumption. Does anyone has experience with this technique? To what extend we can use this technology to preserve RTE food? Are there any major challenges (other than higher cost)?

Thank you, appreciate all your thoughts.