Preheat the oven to 375°F (190°C) and lightly grease a 9x13 inch baking dish with non-stick spray.
In a large mixing bowl, combine the mayonnaise, sour cream, lime juice, chili powder, smoked paprika, garlic powder, and cumin. Whisk until smooth.
Fold the shredded chicken, corn, minced jalapeno, and half of the cotija cheese into the sauce mixture until evenly coated.
Spread the mixture into the prepared baking dish in an even layer.
Sprinkle the shredded Monterey Jack cheese evenly over the top.
Bake for 20 to 25 minutes, or until the edges are bubbling and the cheese on top is melted and slightly golden.
Remove from the oven and garnish with the remaining cotija cheese and fresh cilantro before serving.