Preheat your oven to 350°F and spray a 9x13-inch baking dish with cooking spray. Pour 1/2 cup of enchilada sauce in the bottom and spread it around.
In a large bowl, mix together the turkey, 1/2 cup enchilada sauce, sour cream, 1 cup cheese, green chiles, onion, cumin, garlic powder, salt, and pepper until well combined.
Warm your tortillas in the microwave for 30 seconds wrapped in a damp paper towel to make them easier to roll.
Spoon about 1/2 cup of the turkey mixture down the center of each tortilla. Roll them up tightly and place seam-side down in your prepared baking dish.
Pour the remaining enchilada sauce over the top of all the rolled enchiladas, making sure they're all covered.
Sprinkle the remaining 1 cup of cheese evenly over the top.
Cover with foil and bake for 20 minutes. Remove the foil and bake for another 5 minutes until the cheese is bubbly and starting to brown.
Let cool for 5 minutes, then top with fresh cilantro, avocado, and a squeeze of lime juice if desired. Serve with extra sour cream on the side!