I find it all a bit of a drag, so I try to plan leftovers into the week so we have a bit of an easier time every other day or so.
So this week, roast chicken, stuffing, roast potatoes, carrots, parsnips, sprouts at the weekend.
Homemade pie with all the leftovers from the roast, with mashed potatoes and peas.
Other things I use leftover chicken for are chicken in tarragon sauce, noodle soup, pasta with chicken and pesto, curry, paella.
So I make a roast then pick one leftovers meal to follow after.
Spaghetti Bolognese one night, then Lasagne with half the Bolognese sauce another.
Sausage and mash or toad in the hole one night with eight sausages, then a pasta sauce with the remaining four sausages another.
Fish pie, I make double the filling, then we have the other half with added broccoli, cauliflower and spinach baked with cheese on top and served with rice.
We usually have pizza night midweek too.
If you don’t want to have similar things in the same week you could just freeze the second portions. But my family are used to this way of eating, and actually quite like the predictability!