Vegetarian pie

Name: Vegetarian pie
Prep time: 15 min
Cook time: 1 h 15 min
Total time: 1 h 30 min
Cuisine: European, British
Ingredients: 2 peppers, deseeded and roughly chopped; 2 medium-sized sweet potatoes, cut into 2cm pieces; 1 red onion, finely chopped; 2 courgettes, roughly chopped; 2tbsp extra virgin olive oil, plus extra to brush; 200g mushrooms, roughly chopped; 250g pack ready-to-eat puy lentils; 3tbsp green olive tapenade; Small handful of fresh parsley or oregano, roughly chopped; 5 filo pastry sheets, each measuring about 32 x 38cm; 20cm (8in) round springform tin, lightly greased