I remember playing Retrostudio which recreates Roblox between 2009 and 2015? (I forgot) and there was this one game where there was a restaurant that you could work at or order food from, but the twist of the game was that the food was human meat.
I'm a Retrostudio player as well and I've played a couple of odd games on there. I don't think I have encountered this one before, yet it also sounds familiar. There's no doubt it could be buried somewhere deep in Retrostudio, considering there's a ton and most games end up being overshadowed by games that have more players.