In a food processor (if using), pulse chives or green onion till finely chopped. Add mayo, chicken, salt and pepper. Pulse quickly 5-10x until desired consistency is reached. Stir in pomegranate seeds and chill for 10-15 minutes before serving.
For more acidity, add 1-2 teaspoons of vinegar or lemon juice with the chicken/mayo combo. If you don't have a food processor, simply chop the chives/onion and chicken and then stir to combine.
Notes
Plain rotisserie chickens can be found at Whole Foods, Sprouts, Fresh Market, and Central Market, to name a few. They're just whole chickens with salt and pepper or no seasonings.
Pomegranate seeds are typically found with other packaged fruit/berries but are usually hidden!
If following a migraine diet, do not use lemon juice, only use distilled white vinegar or a pinch of sumac for lemon flavor.
See my pantry staples post for mayo suggestions or make your own (see post for suggestions).