Stuffed Fish Fillets
["1 large onion, finely chopped", "5 1/2 Tbsp. butter", "2 Tbsp. flour", "1 c. clam broth", "salt and pepper to taste", "4 small fish fillets of flounder", "2 Tbsp. chopped fresh parsley", "1/2 lb. cooked shrimp", "4 Tbsp. white wine", "cooked spinach (unchopped)"]
["Preheat oven to 350\u00b0.", "Saute onion in 3 tablespoons butter until tender; remove from pan.", "Melt 2 tablespoons butter in pan. Add flour; blend well.", "Slowly add broth; stir until smooth and thick.", "Add onion; season and remove from heat.", "Combine 3 tablespoons of sauce with shrimp and 3 tablespoons with parsley, reserving some shrimp and parsley for garnish.", "Spread 2 fillets with shrimp sauce and 2 with parsley sauce.", "Roll up fillets; place in buttered custard cups.", "Add 1 tablespoon wine to each cup.", "Bake for 20 minutes.", "Place fillets on warm spinach.", "Top with remaining sauces and garnish."]
["onion", "butter", "flour", "clam broth", "salt", "flounder", "parsley", "shrimp", "white wine"]