handful basil leaves, to garnish (optional)
180²µ/6ΒΌ΄Η³ϊ cherry tomatoes
1 courgette, cut into 2cm/ΒΎin chunks
1 red pepper, seeds removed and cut into chunks
4 medium potatoes (about 400g/14oz in total), scrubbed and sliced into 1cm/Β½in thick wedges
1 red onion, quartered, or 1 leek, cut into pieces
150ml/5fl oz chicken stock
olive oil spray
2 tbsp tomato purΓ©e
8 pork sausages