These LCHF days I serve this tart as a frittata as we no longer eat the pastry.  If you would like to serve it as a tart in the parmesan pastry shell, and you do not follow the low-carb healthy fat program, please email me for the pastry recipe. My parmesan pastry is divine!
Serves 6 or 8.

Vegetables Filling
550g pumpkin, peeled and cut into 1cm cubes
3 cloves garlic, with the skins on
2 onions, roughly cut
1 red chilli, finely chopped
100g semi-dried tomatoes, or fresh tomatoes, roughly chopped
Extra virgin olive oil to coat lightly
sea salt and freshly cracked pepper
Garnish
35g grated parmigiano reggiano for the topping
fresh herbs, finely chopped
125ml Mascarpone cheese
6 eggs, lightly beaten
35g grated parmigiano reggiano
150ml cream
50ml waterbunch each, of any finely chopped herbs such as sage, chives, parsley, thyme or marjoram
sea salt and freshly cracked pepper
¼ to ½ tsp freshly grated nutmeg

Preheat the oven to 180°C.
For the vegetables: prepare the vegetables. Place pumpkin, onions, garlic, chilli and fresh quartered tomatoes onto an oven tray and drizzle with olive oil, season well.  Do not overcrowd the baking tray; use 2 trays if necessary. Bake in the preheated oven for 40 minutes or longer, until the pumpkin is golden and the onions are softened and caramelised. Remove from oven and allow to cool. When cool, slip the garlic out of the skins and mash.
For the filling: combine the mascarpone, eggs, parmigiano reggiano cream and milk, beating well. Add the chopped herbs, salt and pepper and nutmeg. Arrange the cooled pumpkin, onion, garlic, chilli and tomatoes in the tart tin and pour the mascarpone mixture onto the pumpkin. Sprinkle with the freshly grated parmigiano reggiano and any extra herbs, and bake at 180°C for 20 to 25 minutes, until cooked. Check after 20 minutes; if the top is getting too golden brown, cover it with baking paper loosely over the top.  Allow it to rest for a few minutes before cutting and serving.
Serve with tossed green salad, avocado and tiny tomatoes and red onion rings.