Jell-O salads were popular in the 1950s and '60s. A Jell-O dish with radishes, scallions, and a few tablespoons of vinegar wouldn't have been out of the ordinary at a festive meal. Some people continue to serve them up on Thanksgiving just because.
"Modern American palates have changed to dislike savory gelatin, but that was not always the case," food historian Sarah Wassberg Johnson previously told Insider. "Probably until the 1960s, savory gelatinous dishes were a thing."