Crumble the ground turkey (or chicken) into the stockpot and add water (about 4 cups)
Bring the water/meat to a boil, stirring periodically. Boil for about 15 minutes (until the meat is no longer pink)
Add the 2 cups of rice. At this point some of the water will have boiled off and should be close to the 2:1 ratio typically needed for rice. Continue to boil and stir for another 15 - 20 minutes (until the rice is al dente. Be careful to not let it boil over.
Reduce to a simmer, and add the 1 cup of frozen spinach. This will quickly cool off the mixture, so continue to stir while it returns to a simmer. Continue to simmer and stir until most of the water has evaporated off.
Remove the mixture from heat, and allow it to rest/cool for about 10-20 minutes. Periodically stir it to allow any remaining excess water to be absorbed by the rice and to evaporate off
Once cooled, place the mixture into an airtight container and store in the refrigerator. It can be stored for a week in the refrigerator (longer if frozen)
Notes
The time frames are approximate - the important part is that the meat and rice is thoroughly cooked.
Tip: As dogs do not always thoroughly digest rice, it helps to use a food processor to chop up the mixture to a bit finer texture.
This recipe works well for both a mix-in for the dog's regular food (for picky eaters), as well as for dogs needing something gentle for their stomach.
Serving amount is approximate. It depends on the size of the dog/dogs, and how you are using it (full meal vs. food mixer)