The worst thing I ever ate was a cauliflower sandwich from Red Rose Tavern. This was pre-Covid, maybe 2017? It seemed like it could be interesting, but in reality, it was just an undercooked slice of cauliflower with no flavor. So gross!
Second place goes to a burger I got from Craftsman Grill about a year ago that had a lemon aioli...I was tired and didn't read the full description. Oddly enough it made it almost taste like fish. I couldn't even finish it. After that I started asking for "plain" toppings with just lettuce, tomato, and pickle. I usually love their food so this was a surprise for me!