Originally Posted by
kipper
Because I'm not his mother. If he wants meat lasagna with spinach, he can visit her.
Honestly, I don't care for cooked spinach. Raw spinach, I love. Cooked, not so much. So, to some extent, I don't care to contaminate my perfectly good meat lasagna with something I don't like.

The beauty of lasanga is that it is easy to make half of it without a particular ingredient.