Michelle trains like a competitive eater and eventually competes in a competitive eating event.
Competitive eating is a really interesting sport that despite the many videos there are about it...no one (to my knowledge) that isn't a competitive eater has actually tried competing in actual Major League Eating Competition.
Michelle could train and learn from competitive eaters and compete in an officially sanctioned Major League Eating qualifier. (I'm 99% sure anyone can register for this)
And if she wins she could potentially compete in the actual Nathan's Famous Hot Dog Eating Contest.
On top of the physical challenge she could explore the community and learn about why competitive eating exists in the first place.