This entire recipe is extremely basic, unhelpful, and most importantly WRONG. The website sucks. This is no surprise because every single part of it is AI.
It tells you to start with a layer of uncooked lasagna noodles directly on the pan. It's going to be crunchy if you do that. Of course if you knew enough about making a lasagna to know you have to start with the sauce, you wouldn't have any use for this recipe because, once again, it's the most basic lasagna imaginable.
It also tells you to bake, uncovered, at 480ºF. Your cheese is going to be blackened.