Preheat oven to 350°F. Spray a 13x9-inch baking dish with nonstick spray.
Pour melted butter into bottom of prepared baking dish. Put potatoes into baking dish, season with salt and pepper, and toss to coat. Arrange potatoes in layers. Sprinkle with cheddar to cover. Sprinkle bread crumbs over the cheddar. Bake for 1 hour.