Preheat oven to 350°F. Grease a 13x9-inch casserole dish with butter or non-stick cooking spray.
In a large mixing bowl, combine sour cream, chicken broth, cream cheese, diced jalapeños, garlic powder, onion powder, seasoning salt or salt and black pepper, and 1/2 cup of the shredded cheddar cheese. Mix with a hand mixer or spatula until well combined.
Fold the chicken into the mixture.
Pour the chicken mixture into the prepared baking dish, spreading it evenly.
Sprinkle 1 cup of the shredded cheddar cheese and bacon over the top.
Cover with aluminum foil and bake 25 minutes. Remove the foil and bake for an additional 10-15 minutes, or until the cheese is melted and bubbly.
Evenly sprinkle crushed tortilla chips or corn chips and the remaining cheese over the top. Return to the oven and bake for an additional 5-7 minutes, or until the chips are slightly toasted and the cheese is melted.
Let it cool for a couple of minutes. Garnish with fresh cilantro, green onions or fresh jalapeño slices, if desired, and serve warm.