Food in the Navy is generally mid to bad. I just asked my deployed friend what he thought of it and he was less than impressed. That being said, Submarine crews generally get better food because they literally have nothing else.
Nah. I stocked up before deployments and stashed it all under the deck plates of my workspace for days when the food from the galley was particularly inedible. But the ship store did have such such items for purchase, and those items certainly sold!