Spend 250000 food

How exactly to ‘spend 250000 food’ ?
SS a daily mission, I’ve collected food (lvl 7), and fed the facility coins needed to top up production - nothing showed up in the daily objectives. Do I need to wait for a trade harbor offer ? … Seems daft.

buying a mod is the easiest way i find tho i did it with a trade yesterday

Need to use that much food, either feeding creatures or purchasing something with food.

Trade harbor where you are giving up food for something or purchasing MODs with food like @Megalosaurus suggested is another way if you have no creatures to feed.