Jiko is one of my favorite restaurants! In addition to the food, I truly loved that they have separate menus for common allergies and special diets (dairy, gluten, ptk, etc.) It was great to just look at a menu and not have to worry about making a ton of modifications. The chefs still come out and confer, so no worries if there isn't a menu that covers all of the allergies. I really love the African inspired food, and can say it's been one of my favorites over the years with food allergies. We'll be heading there in 2 1/2 weeks, so I'm looking forward to going again!
If you go to WDW's website, you can go to Jiko's page and they have PDF files of all of their current menus available, including the allergies/special diets ones!