Clean, wash and slice the zucchini. Clean spinach, wash thoroughly and cook in boiling salted water for about 2 minutes. Drain spinach well on a sieve. Dice cheese.
Mix eggs and cream, season to taste with salt, pepper and nutmeg. Place the puff pastry in a tart tin (26 cm Ø), place spinach, courgette and zucchini blossom on the pastry, pour the egg cream over it, sprinkle with cheese and pine nuts and bake in the preheated oven (electric range: 175°C/ gas: level 2) for 45-50 minutes.
If necessary, cover the protruding edge after half the baking time.