Wash dill. Fish wash, dab dry. Season with sea salt and pepper. Wrap in foil with the dill. Cook in the preheated oven (electric cooker: 125 °C/ convection oven: 100 °C/ gas: not suitable) for about 20 minutes.
Wash the purslane and cut into strips. Mix with mayonnaise, sour cream and 3 tablespoons of oil. Season to taste with salt, pepper and lemon juice. Quarter peppers, clean and wash. Peel and wash the carrots.
Wash the asparagus, cut off the woody ends. Cook the asparagus in boiling salted water for 2-3 minutes. Drain. Cut cucumber lengthwise in half, remove seeds. Cut carrots, cucumber and bell peppers into long thick strips.
Let the fish cool down. Cut into pieces and remove individual bones if necessary. Fold into the herb cream. Cut baguette diagonally into thin slices. Sprinkle with 4-5 tbsp. oil, season with sea salt.
Place on 2-3 baking trays lined with baking paper. Roast in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 10 minutes.