Preheat oven to 450°.
Place fish in an 8-inch square baking dish coated with cooking spray. Combine mayonnaise and remaining 3 ingredients, stirring well. Brush mayonnaise mixture evenly over fish.
Bake, uncovered, at 450° for 8 to 10 minutes or until fish flakes easily when tested with a fork.
Transfer to a serving platter, and serve immediately.