1
First you need to make Bolognese Sauce. You can make it even the day before or the month before and freeze it. When you need it, defrost in the refrigerator.
2
The second preparation is Béchamel. You can even make it the day before and store it in the refrigerator, covered with cling film, put in contact with the sauce..
3
Now you need to make lasagna noodles. If you prefer to buy them, get some lasagna ready for the oven.
4
Now that you have all the main preparations, start assembling the layers of your lasagna bolognese.