A friend (and fellow list member, IIRC), sent me the following link last with with a question wondering what the provisioning of a major fleet combatant would be like.
https://www.forgotteninfographics.com/new-blog/provisioning-a-warship
My thoughts would be that the meals would be pre-made, much like a "frozen dinner" or a modern MRE and would be heated in either a microwave, convection oven, or through some other means. I don't see a galley and mess hall being incorporated into a ship's
design when you look solely at the numbers and volume requirement for ship's systems - it would be wasted space that could be better used for fuel, armor, or some other "teethâ.