I use canned chicken, but you can boil and shred the chicken and make it using the same recipe. Another option is to use ground chicken, but you will need to adjust the cooking process some. Add the uncooked ground chicken to a bowl with parmesan cheese and an egg. Stir to combine, then add the ingredients to a parchment paper in a circle. You don't need to roll it out just yet, but this helps maintain the form when it comes time to roll. Instead of the first 10-minute bake, cook the chicken mixture for the full 20 minutes, then follow the remaining instructions accordingly.