1. Preheat oven to 450°.
2. Sprinkle fish evenly with pepper. Place fish on a baking sheet coated with cooking spray. Bake at 450° for 5 minutes.
3. Combine butter and next 3 ingredients in a bowl; stir well. Press breadcrumb mixture on top of fish; bake an additional 10 minutes or until crust is browned and fish flakes easily when tested with a fork.