Okay, I thought I'd make my contribution to the list of suggestions. I have tried to search a similar thread but the list didn't bring anything. Having said that lets get right into it.
My idea is to add 2 new buildable buffs in the provision house and 2 new buildings to support these buffs. See bellow:
NEW buildings
Sheep FarmNeeds water and wheatDairy
Produces milkNeeds milkWhy these buildings you ask? Well one of the buildings (sheep farm) already exists. You can find it in the Outlaws adventure and looks like this
Produces cheese
The building bellow the storage has sheep and looks like a farm to me. Ok, on to the next step.
NEW buffs in the provision house
Stefan's buffet
Produced by one of the most renowned chefs among your settlers, this buffet will surely keep anyone entertained and filled :P
Effect: Output is doubled
Duration: 8/9 hours
Requires x fish / x bread / x sausages / x milk
Special Dîné
This special menu filled with the finest delicacies found in your settlement offers the ultimate experience when it comes to taste.
Effect: Output is tripled
Duration: 2 hours
Requires x fish / x bread / x sausages / x milk / x cheese
Now the logic behind this is that TSO is mature enough to offer a longer period buff (8 or 9 hours, take your pick) and a starter buff with triple output. More over, given that the triple output buff is only 2 hours it still doesn't replace the gem ones which offer way more in terms of duration.
Please offer your feedback whether this would work or not, thoughts etc.
Disclaimer: names / requirements are just place holders