You can give your cat a homemade diet based on raw food. Though in order to be balanced you cannot feed only turkey meat.
You will need to feed a variety of meat, offal and, raw meaty bones. You also need to feed a minimum of three different types of meats, including at least two red meatand supplements.
A raw food diet is healthy if done correctly, and can be dangerous if not properly balanced. I advise you to make research about it before starting.
Here two links with two different way to balance a raw diet. Perfectly Rawsome that explain how to make a “prey model” diet. And Raw Fed and Nerdy on how to make a raw diet following the National Research Council nutrient recommendations