I sometimes just pop everything in the slow cooker (always raw, I never brown anything of first) on a Friday night, then will eat Saturday lunch time (when I get in from work) then leave on until Saturday eve and eat another meal, leave on until Sunday lunch and have the same thing again.
Then take out the remains of the casserole and freeze (there will probably be three portions left.
Then two weeks later get the casserole out on Friday morning and let it defrost and do the same thing.
Casseroles/stews are to my mind always better the second and thrid time. Casseroles can be added to as you go along, so you can put another tin of tomatos in or some more stock - a few mushrooms or a few whole shallots.
My slow cooker is so old, that the crock is fixed to the outer element and is difficult to wash It is around 35 years old though and was my mothers
My friend has cooked a whole chicken in her slow cooker, I have another friend who will cook a large pasta meal for her family and then put it in the slow cooker to keep warm as they all eat at different times - so can just come in and help themselves.
Plenty of slow cooker books on amazon, if you do need a recipe.
I am going to use mine over Christmas when I have people in for dinner, I shall make stroganof and then the oven is free for a hot pudding (I only have one oven)