Peel and finely chop the onion. Clean or peel and wash leek and carrots. Cut both into fine strips. Rinse the lentils. Fry onion and vegetables briefly in 1 tbsp. hot oil. Stir in 3/4 l water, stock and lentils, bring to the boil. Simmer covered for about 40 minutes
Wash the fish, pat dry and cut into 24 large cubes. Sprinkle with lemon juice. Halve the bacon slices. Wrap 1/2 slice of each fish cube. Wash and dab off parsley. Put on skewers alternately with the fish. Heat 1-2 tablespoons of oil. Fry the fish for 3-4 minutes on each side, season
Stir the cream into the lentils and simmer for another 5 minutes. Season to taste with salt, pepper and mustard. Arrange everything and garnish with lemon slices
Drink: cool white wine