Stir the noodles every few minutes during the covered cook to prevent them from sticking together or to the bottom of the pan.
The pesto adds a herby, slightly nutty depth that makes this taste more complex than a standard skillet lasagna. Do not skip it.
Drop the ricotta on at the very end rather than stirring it through so it stays in visible, creamy pockets rather than disappearing into the sauce.
Vodka sauce produces a richer, slightly more indulgent finished dish than marinara if you want to lean into the comfort food direction fully.