Classic Lasagna Bolognese

Preheat oven to 180°C

Finely chop the onion, carrot, celery, and garlic

Grate the Parmesan cheese

Prepare the lasagna sheets according to package instructions if necessary

Heat olive oil in a large pan over medium heat

Add chopped onion, carrot, celery, and garlic; sauté until softened, about 5 minutes

Add ground beef and ground pork to the pan; cook until browned

Stir in canned tomatoes, tomato paste, red wine, salt, and pepper; simmer for 30 minutes

In a separate saucepan, melt butter over medium heat

Add flour and whisk for 1-2 minutes to create a roux

Gradually pour in the milk while whisking continuously to avoid lumps

Cook until the sauce thickens, then season with salt, pepper, and nutmeg

Spread a layer of meat sauce on the bottom of a baking dish

Layer lasagna sheets on top, followed by béchamel sauce and more meat sauce

Repeat the layers, finishing with béchamel sauce and a sprinkle of Parmesan cheese on top

Cover with foil and bake for 25 minutes, then remove foil and bake for an additional 15 minutes until golden

Let the lasagna rest for 10 minutes before serving