Follow the steps in order for the best result.
Begin by cutting the chicken or turkey breast into cubes, ensuring they are of a manageable size for processing.
Transfer the raw, cubed meat to a food processor. Pulse the meat until it is broken down into small bits. Take care not to over-process into a mushy consistency; you want a finely ground texture.
Introduce the egg whites, salt, and pepper to the processed meat mixture. This will help bind the loaf and add flavor.
Incorporate any additional seasonings you desire. This is where you can customize the flavor profile to your liking.
Line a small loaf pan with foil, ensuring there is enough overhang on the sides to easily lift the cooked loaf out later. Lightly oil the foil to prevent sticking.
Firmly pack the seasoned meat mixture into the prepared loaf pan, ensuring it is evenly distributed and compressed.
Consider adding fresh ground black pepper or a sprinkle of cayenne pepper for a peppered version, or incorporate a dry rub for a BBQ-inspired flavor.
Bake in a preheated oven at 325-350°F (160-175°C) until the meat is fully cooked and reaches a safe internal temperature. The baking time will vary depending on the size of the loaf pan and the thickness of the meat. Use a meat thermometer to ensure doneness.
Allow the cooked loaf to cool completely in the pan.
Refrigerate the cooled loaf for a couple of hours, or preferably overnight, before slicing. This chilling period allows the loaf to firm up, making it easier to slice thinly and evenly.