Wash the asparagus, cut off the woody ends. Simmer the asparagus in lightly boiling salted water for 5-6 minutes, remove and rinse with cold water. Clean and wash the chillies. Cut the pods into rings, removing the seeds.
Grate parmesan. Mix sour cream, parmesan, egg, flour and chili rings, season with salt and pepper. Grease a rectangular tart tin (approx. 25 x 16 cm) with lift-off base. Unroll the puff pastry on the baking paper, brush with water, fold crosswise and remove the baking paper.
Roll out to approx. 34 x 24 cm on a work surface lightly dusted with flour. Place the dough in the form, press it down and sprinkle the base with breadcrumbs. Cut off the protruding edge to about 1.5 cm.
Fill in the sour cream mixture. Put asparagus spears and olives in it or press them. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 15-20 minutes until the mixture has set.
Finally, cover with aluminium foil if necessary.