Italian vegetarian quiche with grilled vegetables from the Big Green Egg

Ingredients

• 1 270 g roll of fresh puff pastry
• flour for dusting
• beans or rice for blind baking
• 1 head of radicchio
• 1 red onion
• 2 shallots
• 1 green courgette
• 1 yellow courgette
• 1 aubergine
• 2 cloves of garlic
• 1 sprig of thyme
• 1 sprig of marjoram
• 1 sprig of rosemary
• 4 tbsp olive oil
• 4 eggs
• 6 egg yolks
• 400 ml whipping cream
• 300 g provolone
• 200 g walnuts
• 100 g grated Parmesan cheese
• 3 tomatoes
• 2 radishes
• 50 g provolone
• 1 shallot
• 2 tbsp olive oil
• 1 tbsp balsamic vinegar