Yes. The freezers are huge, the fridges are massive. You load the food into the spaces using pallet jacks and forklifts (to give you an idea of the size). The food is stored in metal cages specifically designed to fit onto rails in the floor and stack on top of each other. You then secure each stack in place with bars/straps.
The food/ammo (aside from missiles and torps) is brought on board already packed into these cages through a side-shell door on a specific crane designed to lift them.
As
@Stoker mentioned there is also space for ISO containers and hook ups for electrical to have refrigerated ISO's should that be needed.
There are some stability concerns with the triple threat of a full ISO container load, ammo load and fuel load. However that still needs to be worked out as we get the ship and figure out loading configurations, fueling/supply rates etc.... Likely you won't be running all three of those things at the same time either way. I can see a number of operations which would use a full suite of two of those, or combos of partial loads, but not any that would
need all three. But the flexibility it provides is great. Not going to be carrying full loads of Harpoons/ESSM/Torps and main gun ammo very often.