250g/9oz chestnut mushrooms, sliced
1 red chilli, deseeded and finely chopped
1 tbsp chopped fresh sage
100g/3陆oz baby spinach, roughly chopped
1 tbsp chopped fresh thyme leaves
2 tbsp sun-dried tomato paste
6 large dried lasagne sheets
500g/1lb 2oz passata
1 tbsp plain flour
salt and freshly ground black pepper
2 fat garlic cloves, crushed
1 tbsp oil
1 tsp light muscovado sugar
butter, for greasing
75g/2戮oz mature Cheddar cheese, grated
200ml/7fl oz full-fat cr猫me fra卯che
450g/1lb pork sausage meat