Heat oven to 350°F. Spray 13x9-inch baking dish with cooking spray.
In medium bowl, stir together chicken strips and buffalo sauce. Spoon into baking dish in a single layer.
In the same bowl, stir together potatoes, dressing, cheese and soup. Spread over chicken. Sprinkle panko evenly over the top.
Cover with foil. Bake 30 minutes; uncover and bake 20 to 25 minutes longer or until potatoes are tender and juice of chicken is no longer pink when centers of thickest pieces are cut.
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Buffalo Chicken and Potato Casserole recipe