It's not a 'kit', of course it isn't! A kit is a set of tools or items that are intended for a specific purpose, which means that you get everything that you need for making lasagne, and this 'kit' is not a 'kit'. That's misrepresentation, to put it mildly, and Mrs. bookbinder is still annoyed by what you have seen.
well you get many similar "kits" that are designed to put with the fresh ingredients. I am guess ing that this one would have in it pasta, tomato sauce, the base for the cheese sauce, maybe herbs and spices.
I suppose the idea of these kits is to have something in a cupboard as a standby....so, stored at ambient temperature. You couldn't expect perishable ingredients to be included.
Anyway, these kits are a very expensive way of buying a few ingredients....avoid!
Basically you're paying a pound per person for a bit of tomato sauce, a bit of 'creamy sauce' and a bit of pasta. It also means that (unless you're prepared to muck about dividing up the sauces) you're forced into making a four-portion lasagne, even if there aren't exactly four people in your house to eat it.