Why would they need frozen ingredients a few times a week? I think you must be thinking of the fresh ingredients.

None of the food you were eating was fresh food. A pre-packaged peanut butter sandwich? Instant mashed potatoes. Frozen meatballs and gravy...

I don't see any fresh salad greens on your plate. Those are the kinds of things they get a few times a week.

That wrap is probably the only slightly fresh thing you have eaten all month.