Spoon mushroom sauce over fish. Heat, uncovered, in Microwave Oven 2 to 3 minutes or until heated through. Sprinkle with paprika just before serving. Note: Many fish markets sell sole pre-stuffed with salmon However, if this is not available, you can roll a piece of fresh salmon (about 3 cm in diameter and 10 cm long) in a small fillet. Fasten each roll with a toothpick. Unstuffed sole or sole that has been stuffed with shrimp, clams, scallops or crabmeat can also be used for this recipe. It is advisable to roll sole fillets even though they may not be stuffed.