How to Make It
Preheat broiler to high.
Arrange fish fillets, skin side down, on a broiler pan coated with cooking spray. Sprinkle the fish evenly with 1/2 teaspoon salt and pepper. Broil 7 minutes or until desired degree of doneness.
While fish cooks, combine yogurt, mayonnaise, dill, lemon juice, remaining 1/4 teaspoon salt, and garlic in a small bowl, stirring with a whisk until combined. Serve fish with sauce.