The most disgusting thing I've ever eaten was beef bourguignon in some fancy restaurant in Paris. I took two bites of it and almost vomited. I didn't knew exactly what I was ordering because the menu was in French of course. It was drowning in mushrooms and a heavy wine sauce, two things that I hate. I gave it to my gf and she thought it was delicious lol. I can't imagine how she perceived those flavors.