Mix together canned chicken, shredded mozzarella cheese, ground sunflower seed meal, egg, and spices.
In a separate shallow bowl, whisk together crushed pork rinds and cayenne pepper.
Using a spoon, scoop out some of the chicken mixture and form it into a nugget shape, then gently dip and coat all sides of the nugget in the pork rinds mixture. Transfer the breaded nugget to a baking sheet. Repeat this process to yield 15 nuggets. Do not discard leftover crushed pork rinds.
Transfer the nuggets to the oven and bake for 7 minutes. Remove the baking sheet from the oven and flip each nugget over. Sprinkle the remaining crushed pork rinds atop the other side of the nuggets, then return the baking sheet to the oven and bake for 6 minutes.
Remove the chicken nuggets from the oven. Allow the nuggets time to cool slightly before serving on their own or with your favorite dipping sauce.