Tonight I made:
Sausage Rolls (shop brought sausage, deskinned and put inside homemade suet pastry)
Carrot Sticks
Peas and Baked Beans
Homemade chocolate meringue, homemade gingerbread, plus a selection of fruit was available for pudding.
I don't always do something hot... it can often be more a snack type tea, shortly after eldest child comes home from school. Such as sandwiches, veg sticks, cheese pieces, fruit, yoghurt.
Agree that a nanny would not usually be doing a meal for all the family... tends to be just the children. Though there can of course be left-overs available for parents, plus it will depend on the age of the children, as older children will eat later.
Reheated food does not tend to taste that nice... though some things can be made quickly if having part of it pre-done, such as spag bol.
How old are your children?