Whip the cream until stiff. Stir in sour cream and horseradish. Add green pepper. Clean, wash and dry the tomato. Cut tomatoes into quarters, remove seeds and cut flesh into small cubes. Wash lettuce leaves and drain well.
Wash dill, chop a part. Arrange trout fillets with the salad on a slice of bread. Spread horseradish cream on top. Sprinkle with diced tomatoes and chopped dill. Garnish with the remaining dill and lemon wedges as desired