2 tbsp Moutarde de Dijon
4 flounder fillets
1 cup potatoes
Place oven rack 6 inches from broiler heat source. Heat broiler on high.
Place flounder fillets on jelly-roll pan. Sprinkle with pepper. Brush fillets with Dijon mustard. Spread potatoes on tops of fillets.
Broil 3 to 4 minutes or until fish is firm and opaque throughout when tested with a fork. Garnish with dill.