In a large mixing bowl, combine the cooked shredded chicken, softened cream cheese, and half of the shredded cheddar cheese. Add the diced jalapeños, garlic powder, onion powder, salt, and black pepper. Mix until well combined.
Spread a thin layer of enchilada sauce on the bottom of a 9x13-inch baking dish. Take a tortilla and spoon about 1/4 cup of the chicken mixture into the center. Roll it up tightly and place seam-side down in the baking dish. Repeat with remaining tortillas and filling.
Pour the remaining enchilada sauce over the top and sprinkle the rest of the cheddar cheese and crumbled bacon (if using) on top. Preheat oven to 350°F (175°C) and bake for 25-30 minutes until cheese is bubbly and golden brown.
Remove from oven and let cool for 5 minutes. Garnish with chopped fresh cilantro before serving.