Preheat your oven to 350°F (175°C). Grease a 9x13-inch (23x33 cm) baking dish with butter or cooking spray.
In a large bowl, mix the sour cream, chicken broth, softened cream cheese, diced jalapenos, garlic powder, onion powder, salt, and black pepper. Add 1/2 cup (55 g) of the shredded cheddar cheese and stir until well combined.
Fold the shredded cooked chicken into the cream cheese mixture until evenly coated. Ensure any previously cooked poultry reached a safe internal temperature of 165°F (74°C).
Spread the chicken mixture evenly into the prepared baking dish.
Sprinkle 1 cup (115 g) of the shredded cheddar cheese and the crumbled bacon evenly over the top.
Cover the dish tightly with aluminum foil. Bake for 25 minutes.
Remove the foil and bake for another 10 to 15 minutes, until the cheese is melted and the edges are bubbling.
Sprinkle the crushed tortilla chips and the remaining 1/2 cup (55 g) of cheddar cheese over the casserole.
Bake for 5 to 7 more minutes until the chips are lightly toasted. Let the casserole cool for 5 minutes before serving. Garnish with fresh cilantro or green onions if desired.