Describe the feature you have in mind.

Most people associate handmade food as being higher quality. On the other hand, food which is manufactured by machines on a large scale is considered lower quality. I don't quite know how you'd make them different, but it would open up new dynamics between players and how automated food is treated.

Does this solve a particular problem?

I think this would be neat as it means you'd have to choose:
automated food = higher quantity.
handmade food = higher quality.

Its similar to how melons are easily automated in vanilla MC, but to balance it out, melons are not a great food source.

I came across your request while I was thinking about requesting a similar enhancement, and I liked your idea.

In fact, there is something similar to what you ask for, called "passive skill tree" it has cooking skills, it improves the meals you make by hand, which is one of the things you mention.
And about higher quantity for automated food, should it have something less quality? or just more quantity? Because if it's just quantity, maybe with a datapack changing the recipes so that they give more quantity could solve that?

I made a typo in my first sentence of previous comment. I meant to say "higher quality"

Thank you for bringing the passive skill tree mod to my attention, I'll have to look at it.

To answer your question for what I had in mind regarding higher quantity automated food: I was thinking that automated food would just be worse without changing how much food a recipe outputs. The higher quantity is already there because the assumption is that the contraption creating the food is running 24/7. If I needed to, I could (probably) recompile Farmer's Delight with nerfed food. I am unsure if I can change the food with a datapack.

That is just my idea though, if the developer of Slice n' Dice decided to look at this enhancement and likes it, I would be curious to see how they would implement it.