For Bechamel sauce, in a saucepan add: butter, melt over low heat, add flour and mix vigorously until a baked smell is felt.
Gradually pour in the milk, continuing to stir vigorously to eliminate lumps.
Season with salt, ground black pepper, and nutmeg to taste.
Boil for 2-3 minutes and then let it cool down a bit.
In a baking dish, add 2-3 tablespoons of Bolognese sauce (RECIPE Spaghetti with Bolognese sauce https://gatimcu.com/recipes_ro/spaghetti-with-bolognese-sauce/)
Spread it over the entire surface.
Place lasagna sheets.
Add Bolognese sauce.
Cover with cheese.
Bechamel sauce
(continue with lasagna sheets, repeat the procedures until finishing the ingredients)
In the end, sprinkle with Parmesan.
Bake the lasagna for 40 minutes at 180°C.
Take out the lasagna, let it rest for 10-15 minutes and enjoy.
Enjoy!