Add the shredded turkey, pumpkin puree, chopped onion, and minced garlic into the slow cooker.
Pour in the chicken broth and sprinkle the cinnamon, ginger, nutmeg, salt, and pepper over the ingredients.
Gently stir everything together with a mixing spoon to evenly distribute the spices and liquids.
Cover the slow cooker with its lid and cook on low for about 4 hours, until the flavors meld and the stew thickens slightly.
After cooking, gently stir the stew to check its consistency and ensure everything is heated through.
Taste the stew and adjust seasoning with additional salt and pepper if needed.
Spoon the hearty, velvety stew into bowls, revealing its warm, fragrant, and thickened appearance, ready to serve.