Prepare the Ingredients: Preheat your oven to 375 degrees F. Place the chicken breasts on one half of a baking sheet and drizzle with 2 tablespoons of olive oil. Season with chili powder, cumin, salt, and pepper. On the other half of the baking sheet, place the jalapeño peppers and drizzle with the remaining 2 tablespoons of olive oil; season lightly with salt and pepper.

Bake Chicken and Bacon: Arrange the bacon slices on a separate baking sheet in a single layer. Place both baking sheets in the oven. Bake for about 25 minutes, until the chicken is cooked through (internal temperature should reach 165°F) and the bacon is crispy.

Prepare the Casserole Mixture: In a mixing bowl, combine cream cheese, Cheddar cheese, sour cream, chicken stock, and paprika. Dice the cooked chicken and chop the bacon. Stir in all the diced chicken and half of the chopped bacon into the cream cheese mixture until well combined.

Assemble the Casserole: Transfer half of the chicken mixture to an 8-inch square casserole dish. Layer half of the roasted jalapeños over the chicken mixture. Repeat with the remaining chicken mixture and jalapeños.

Top and Bake the Casserole: In a small bowl, mix the crispy fried jalapeños, panko breadcrumbs, and the remaining chopped bacon. Toss with melted butter until evenly mixed. Sprinkle this breadcrumb mixture over the top of the casserole. Bake in the oven at 375 degrees F for 25 to 27 minutes, until the top is golden and bubbly.