Apart from the obvious pasta bake and cottage pie!
DH is going back to work FT and I will now be doing all the cooking during the week.
Unfortunately I will also be doing the school runs and, due to my disability, am usually in a lot of pain and exhausted when we get in around 3.30. Even standing long enough to do a quicker pasta/sauce dish eg would be difficult on bad days.
However during the day (on non work days) I'm actually not too bad, and I've been enjoying cooking lately. I thought I could do most of the prep during the day and so I can just rest after school and then reheat it in time for 5pm.
We do have a slow cooker which I have used... once 
so any reeeeeally simple (and I really mean idiot proof as I'm by no means a natural cook!) ideas for that would be good too!
DCs not too fussy but don't tend to like a lot of 'wet' stuff like soup