1. In a shallow bowl, combine tortilla chip crumbs and chili powder. In another bowl, combine lemon juice and oil. Dip fish in lemon mixture, then coat with crumb mixture.
2. Place in a 13-in. x 9-in. baking dish coasted with cooking spray. Sprinkle with any remaining crumbs.
3. Bake at 450° for 8-10 minutes or until fish easily flakes with a fork. Serve with salsa. Yield: 4 servings.