Preheat the oven to 350°F (175°C).
In a large mixing bowl, combine the softened cream cheese, ½ cup of shredded cheddar cheese, shredded chicken, diced green onions, garlic powder, cumin, salt, and pepper. Mix until well combined.
Spread a thin layer of enchilada sauce on the bottom of the baking dish.
Take one flour tortilla and place ¼ cup of the cream cheese mixture in the center. Roll up the tortilla tightly and place it seam-side down in the baking dish. Repeat with the remaining tortillas.
Once all the tortillas are in the baking dish, pour the remaining enchilada sauce over the top and sprinkle with the remaining ½ cup of shredded cheddar cheese.
Cover the dish with aluminum foil and bake for 20 minutes.
Remove the foil and bake for an additional 5 minutes, or until the cheese is melted and bubbly.
Remove from the oven and allow to cool for a few minutes before serving.