Ale and Tale Tavern is great co-op fun, and terribly cozy. It's primarily fantasy themed overcooked, but with much chiller vibes.
There's optional adventurer stuff, but it is pretty light, there's good accessibility settings, and the adventuring can be delayed until stronger gear is available or done cooperatively, making it much easier.
Over time, you can upgrade your gear and decorate the tavern.
If anything, the game's flaw is just that it's relatively short, for an economy simulation game.
(6 to 8 hours with my group unlocked everything. We played past the end for maybe another two hours just for the chill vibes.)