Nduja lasagne

Name: Nduja lasagne
Prep time: 20 min
Cook time: 1 h 45 min
Total time: 2 h 5 min
Cuisine: European, Mediterranean, Italian
Ingredients: 1 tbsp olive oil; 1 onion finely chopped; 3 garlic cloves finely chopped or grated; 2 tbsp sundried or regular tomato purée; 500g beef mince; 4 tbsp nduja; 2 large tomatoes chopped; 400g can chopped tomatoes; 500ml vegetable stock; 1 basil sprig leaves picked and torn; 9 dried lasagne sheets; 200g grated mozzarella or cheddar; 125g ball mozzarella torn; 200g crème fraîche; 250g mascarpone; 50g grated parmesan plus extra to serve