Hey, well we have a half termly rota - which changes depending on the season. We always have simple meals (e.g. pasta and homemade frozen tomato sauce/frozen homemade pizza) on the days when the children have evening activities (Wed/Thurs) because they're the days we have the least time to cook/wash up.
During each half term holiday, my husband cooks up batches of bolognaise, cottage pie and chilli and freezes enough for us to have one meal of each every week during the half term.
On Friday, my husband always cooks from scratch and we have a roast dinner every Sunday. Monday night's dinner is Sunday's left overs!
It all sounds a bit regimented, but we found that before this, we ended up spending a fortune on takeaways or didn't eat anything at all ourselves.
Ideally, I'd cook fresh from scratch every night, but as that isn't possible this is the next best thing!