A lot of cast iron skillet one-pot recipes I see pertain to meat (steaks, chicken etc. - meats that benefit from Maillard reactions).

As a veg, I can only think of caramelized onions, as well as fritattas and quiches that would require finishing in the oven that would make a cast iron skillet a worthwhile investment for me (I do have baking dishes, so I could add to do the dishwasher load instead).

Thoughts or suggestions? Or any veggie cast iron skillet ideas? Thanks in advance!