That UA feat is a bit iffy. The +2HD on a long rest is meh. And elsewise it only helps with disease and poison.
If you could serve the feast in a short rest, it would be solid.
Sure: except, "I cook everyone a gormet meal during the long rest" generates as much in-game "flavor".It gives you a +1 to Con and it has a ton of FLAVOR/Fluff to it.
Oh, edit: I thought that was a link to this feat:
Gourmand - Homebrew Feat - D&D 5e Half-Cover
The Gourmand is the finest of chefs, able to produce foods so wonderful and invigorating, that it helps to heal and protect those who eat.half-cover.com
I'm putting this one back here in case it was missed. What are people's thoughts on it. Seems a bit too powerful to me but I'm curious. I like that you actually get to roll your tools to make things happen.
rp-wise, I'm thinking of playing him as a 'nothing goes to waste' kind of druid. Every part of everything gets made into something. I kind of wish D&D let you take more tools. tanning tools and brewing tools would fit my idea well.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.