Preheat oven to 400 degrees. Place the fish on a foil-lined baking sheet coated with cooking spray. Combine cheese, mayo and onions; spread evenly over the fish. Combine breadcrumbs and remaining ingredients; sprinkle evenly over the fish. Lightly coat fish with cooking spray. Bake at 400 degrees for 10 minutes or until fish flakes easily with a fork. Serves 4.
Recipe courtesy of The Butcher Shoppe.