Heat olive oil in a large pot or Dutch oven over medium-high heat. Add ground turkey and cook, breaking it up with a spoon, until browned. Drain off any excess fat.
Add chopped onion to the pot and cook until softened, about 5 minutes.
Stir in minced garlic, chili powder, cumin, cinnamon, and nutmeg. Cook for 1 minute more until fragrant.
Bring the chili to a simmer, then reduce heat to low, cover, and cook for at least 20 minutes, stirring occasionally. For a richer flavor, you can simmer for up to an hour.
Season with salt and black pepper to taste.
Serve hot, with your favorite toppings.
Notes
The pumpkin flavor is subtle and adds a creamy texture and slight sweetness to the chili.
For a spicier chili, add a pinch of cayenne pepper or a diced jalapeño with the onions.
This chili is excellent for meal prep and can be stored in the refrigerator for up to 4 days or frozen for longer storage.
Consider this a great option for fall chili cookoffs or cozy weeknight dinners.