Bolognese Lasagna with White Sauce

Method

1. Preheat oven to 180°C (350°F).
2. In a pan, cook the onion, garlic, carrot, and celery until softened.
3. Add ground beef and cook until browned.
4. Stir in tomato sauce and white wine, then simmer for 30 minutes.
5. In a separate saucepan, make a white sauce: melt butter, add flour, and gradually stir in milk.
6. Season the white sauce with salt and pepper.
7. In a baking dish, layer lasagna sheets, meat sauce, white sauce, and mozzarella.
8. Repeat layers, finishing with a top layer of white sauce and Parmesan.
9. Bake for 25-30 minutes until bubbly and golden.
10. Check that the ground meat reaches 71°C (160°F) throughout before serving.