Preheat oven to 350.

In a large bowl combine egg, breadcrumbs, spices, carrots and celery. Use a fork to mix it all together. Add the turkey to the mixture and combine with your hands to mix in as evenly as possible.

Place half the meat mixture in a loaf pan. Place the spinach and cheese on the meat in the pan. Cover the spinach and cheese with the rest of the meat mixture, making sure to seal the sides to avoid cheese melting out.

Bake 40 minutes.

Allow to sit 5 minute prior to cutting. Serve over mashed potatoes if desired.