The Enterprise gets sent back in time to the 1960's, and a couple of time-local people end up on the ship. At one point, a crewman offers one of the passengers food while they are both in the transporter room, and the passenger accepts. The crewman then says "What would you like," and the passenger responds with "chicken soup."
What happened next surprised me. The crewman took out maybe half a dozen of the ubiquitous plastic rectangles, put one in a machine in the wall, waited a few seconds, and took out a bowl of hot chicken soup. I don't think he pressed any buttons, and no verbal command was given. Now, I don't know what the odds are of the passenger asking for one of the six foodstuffs the crewman had at his disposal, or if maybe his verbal request for soup was somehow processed, but no mention is made of where the food came from. So is the machine a replicator?