Ingredients
3 tablespoons mayonnaise
3 tablespoons grated Parmesan cheese, divided
2 teaspoons mustard seed
1/4 teaspoon pepper
1 cup soft bread crumbs
1 green onion, finely chopped
1/2 teaspoon ground mustard
2 teaspoons butter, melted
Thinly sliced green onions, optional
Directions
Combine the mayonnaise, 2 tablespoons cheese, mustard seed and pepper; spread over tops of fillets. Place on a broiler pan coated with cooking spray. Broil 4 in. from the heat until fish flakes easily with a fork, 3-5 minutes.
Meanwhile, in a small bowl, combine the bread crumbs, onion, ground mustard and remaining 1 tablespoon cheese; stir in butter. Spoon over fillets; spritz topping with cooking spray. Broil until golden brown, 1-2 minutes longer. Sprinkle with green onions if desired.