For making Pastichio in advance you should know that a). the ground meat sauce retains well for a minimum of 3 times in the fridge. b). The Bechamel product keeps properly from the fridge till the following day (mix during the eggs and cheese about the working day you bake https://pastitoto13579.tnpwiki.com/6476519/the_5_second_trick_for_pasti_toto