Base Camp Kitchen Missions do not allow Frozen ingredients to be used for most recipes.
Steps to reproduce the behavior:
NPCs should be allowed to use frozen ingredients in the Base Camp's Kitchen Expansion via cooking missions.
My testing has shown the following recipes are impacted:
Cook: Cornmeal
Cook: Egg, Boiled
Cook: Fish, Cooked
Cook: Fish, Smoked
Cook: Lard
Cook: Meat, Aspic
Cook: Meat Jerky
Cook: Meat Pie
Cook: Meat, Cooked
Cook: Meat, Smoked
Cook: Mushroom, Cooked
Cook: Mushroom, Dried
Cook: Sausage
Cook: Sausage, Wasteland
Cook: Veggy Aspic
Cook: Veggy Pie
Cook: Veggy, Pickled
The following recipes are not impacted, or seem to work with (some) frozen ingredients:
Cook: Hardtack (frozen flour works OK, but frozen salt does NOT, so it technically cant be made)
Cook: Bread
Cook: Flatbread
Cook: Meat, Canned
(Unlisted/missing recipes were ones I was unable to test at the time.)
Here you can see a stack of frozen chunks of meat placed on the Basecamp: Food tile for usage

Here you can see the Cook: Meat, Canned is able to use the ~1600 peices of meat as expected

Here you can see both the Cook: Meat, Cooked + Cook: Meat, Smoked are unable to pull from this same pile of (frozen) chunks of meat


(Am new to GitHub, so constructive criticism welcome for next time)
Camp crafting is about to get overhauled to fix issues like this.
Most helpful comment
Camp crafting is about to get overhauled to fix issues like this.