Clean, rinse and dice the bell pepper. Peel and finely dice the onion.
Stew the diced paprika and onion in the hot clarified butter in a closed saucepan for about 15 minutes until soft.
Rinse the fish fillet, pat dry, season with salt and pepper. Then cut into large cubes and wrap the bacon around them. Rinse the zucchini and tomatoes. Cut the zucchini into about 16 slices. Place the fish fillet, courgette and tomatoes alternately on wooden skewers. Now fry in the hot clarified butter in a large pan for about 8 minutes.
For the sauce, finely puree the diced paprika and onion with the cutting stick of the hand mixer. Stir in the sour cream and heat. Rinse and finely chop the chervil. Stir into the sauce and season with salt and pepper.