Love to see an Oregon Trail-like. I've thought about the phrase "Oregano Trail" a weirdly high number of times before, actually, but unlike some other pun-based Oregon Trail spinoff names (Gorgon Trail, Orion Trail, Oregon Trial...) it doesn't immediately suggest an obvious interpretation. But the interpretation you found is super cute and innovative!
The balance seems fairly good, although I think it depends a lot on the RNG. On my first playthrough I grabbed lots of Elixers and won pretty easily. On my second playthrough I got a ton of sea monsters in a row, which was fairly brutal, and ended up not even making it halfway. Either way, I definitely felt engaged & like I was making meaningful choices. On top of that, the art and audio is nice and the UI is very polished.
Overall, this was very enjoyable to play. Great work!