To a large pan on medium heat, add your avocado oil, onions, salt and sumac, to taste. Cook for about 15-20 minutes, stirring occasionally until they are softened and begin to caramelize.
Pull the meat from your rotteserie chicken and add it to a bowl. Then season with a dash of salt, sumac and all spice, to taste. Toss until your seasonings are well distributed.
Add your whole grain naan on to a baking sheet and broil for 2-3 minutes (make sure to keep a close eye to prevent burning) until they are slightly browned and crispy.
Add your chicken to your onions and mix until everything is well combined, then remove from heat.
Once your flatbreads are nice and crispy to your liking, top with the onion and chicken mixture. Then season with some additional sumac, toasted pine nuts and minced parsley, if using. Enjoy!
Hint: There are only 4 flatbreads featured but this recipe has enough chicken and onions for 6 flatbreads.Scroll up to see substitutions, variations, storage options, FAQs and top tips.