GNOCCHI WITH ROASTED RED PEPPERS. AUBERGINES AND CHILLI

4 romano peppers, halved and deseeded • 2½ tbsp extra virgin olive oil • 2 garlic cloves, unpeeled and bashed • 1 large aubergine (about 300g), cubed • handful basil leaves • 1 red chilli, deseeded • 50g grana padano, grated • 500g pack essential Waitrose fresh gnocchi • 40g wild rocket