Chicken cooked hamburger

Hi everyone! Not sure if this is the right place for my topic, but anyway... I am looking for a recipe for cooked chicken ham, made from breast.

The catch is it has to be e free and no allergens.

I have tried, but so far I am not satisfied with the result.

It doesn't maintain a nice white-pinkish colour and it kinda falls appart after treatment. Any ideas are welcome.