Cheese gratin recipe

Ingredients

• For the tomato sauce:
• 2tbsp olive oil
• 1 large onion, finely chopped
• 2 garlic cloves, crushed
• large pinch chilli flakes
• 1tsp dried oregano
• 2 x 400g cans chopped tomatoes
• ½tsp sugar
• For the filling:
• 200g Taleggio cheese, sliced
• 300g mozzarella, torn into chunks
• 200g soft, unrinded goats' cheese, broken into chunks
• 150g Parmesan, grated
• handful fresh basil
• balsamic vinegar, for drizzling
• 150g fresh lasagne sheets
• 40g breadcrumbs