Kudos Micah and I hope you can stick to it. The best thing you can do is have a plan ahead of time so you don't get to the point of it being dinner and having no fucking clue what to do/make.
With my new job I'm actually home sooner (45 min sooner) so I've been doing more of the cooking. Even when I was getting home later I would help with most meals but we do make an effort to cook a decent dinner most nights. It's hard sometimes but definitely worth it.