1 head cauliflower, trimmed and broken into florets
250g/9oz chestnut mushrooms, finely sliced
green salad
pinch English mustard powder
50g/2oz plain flour
salt and freshly ground black pepper
50g/2oz ciabatta breadcrumbs
pinch ground nutmeg
25g/1oz butter
55ml/2fl oz double cream
200g/7oz gruyère cheese, grated
250ml/9fl oz full-fat milk
50g/2oz parmesan cheese, finely grated
250g/9oz smoked streaky bacon, cut into 1cm/½in strips
crusty bread