Preheat your oven to 375°F (190°C) and spray a 9x13 baking dish with cooking spray.
In a mixing bowl, combine the whipped cream cheese, sour cream, Frank’s RedHot Buffalo Sauce, ranch dressing, smoked paprika, garlic powder, onion powder and black pepper. Mix until everything is incorporated as much as possible. If there’s small chunks of cream cheese, it’s okay, it will melt in the oven.
Fold in the shredded chicken and ½ cup of the Mexican cheese blend.
Add the mixture to the prepared baking dish and smooth out the top so it’s even.
Add the remaining shredded cheese to the top.
Bake uncovered for 20–25 minutes, until the cheese is melted and bubbly.
Add a drizzle of ranch dressing over the top and sprinkle with chopped green onion. Serve right away with tortilla chips, celery and carrots.