Pastry;
Place parmesan, herbs and spelt into Thermomix bowl and mill 20 sec/speed 10.
Add butter, flour and a pinch of salt. Mix 6 sec/speed 6. Add enough cold water to form a crumbly dough. Mix 10 sec/speed 6. Push dough together, form into a disc and wrap in Silpat mat. Refrigerate for 30 minutes.
Roll out on floured Silpat mat and line a 23cm deep dish flan tin with removable base. If you prefer, use a pie dish with similar proportions. Freeze until ready to assemble and bake.
Filling;
Preheat oven to 200°C.
Place the onion, zucchini, spinach and capsicum in strips into the pie shell. Arrange fresh herbs over.
Place remaining parmesan and cheddar into Thermomix bowl and mill 7 sec/speed 10. Set aside.
Place peppercorns and salt into Thermomix bowl and mill 10 sec/speed 10. Add remaining ingredients and mix 20 sec/speed 6. Pour over vegetables. Sprinkle with grated cheese and bake for 30 minutes. Reduce temperature to 160°C and cook a further 10 minutes. Allow to cool slightly in oven with door ajar before removing. It should still be a bit wobbly in the centre.
Serve with salad of choice.
Cool before serving for best slicing results!