01 - Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish.
02 - In a large mixing bowl, combine the shredded chicken with smoked paprika, garlic powder, onion powder, salt, and black pepper. Toss until evenly coated.
03 - Add the diced dill pickles, pickle juice, ranch dressing, sour cream, and thinly sliced green onions to the seasoned chicken. Stir thoroughly to integrate all components.
04 - In a separate bowl, thoroughly mix the shredded cheddar and mozzarella cheeses.
05 - Arrange two large flour tortillas on the bottom of the prepared baking dish, overlapping them as necessary to form a cohesive base. Spread one-third of the chicken mixture evenly over the tortillas. Sprinkle one-third of the cheese blend over the chicken layer.
06 - Repeat the layering process two more times: add another layer of tortillas, followed by another third of the chicken mixture, and then another third of the cheese blend.
07 - Complete the bake by adding a final layer of tortillas. Top generously with the remaining cheese blend. Cover the baking dish tightly with aluminum foil. Bake in the preheated oven for 20 minutes.
08 - Carefully remove the aluminum foil from the baking dish. Continue baking for an additional 10 minutes, or until the cheese is melted, bubbly, and exhibits a golden-brown hue.
09 - Allow the quesadilla bake to rest for 5 minutes before portioning. Garnish with fresh dill and sliced jalapeños, if desired, before serving.