2 courgettes, cut into 2cm/1in slices
2 tbsp finely chopped parsley
1 red pepper, cut into 3cm/1in chunks
1 yellow pepper, cut into 3cm/1in chunks
1 medium red onion, cut into thin wedges
50g/1ΒΎoz baby spinach leaves
2-3 tbsp balsamic vinegar
sea salt and freshly ground black pepper
10g dry white breadcrumbs
1 tsp olive oil
50g/1ΒΎoz unsalted butter
10g finely grated Parmesan
4 x 150g/5Β½oz thick, skinless cod fillets
4 slices of Parma ham or any other sliced prosciutto