Cook once, eat twice or more!
Every time I make something, I try to make extra - especially if it can be frozen. In this way I get a huge stock in the freezer for those busy times: gumbo, chili, soups, meat or veggie loaves, falafel, quick & yeast breads, tomato sauce - you name it.
Too many potatoes? Make mashed potatoes & freeze them to use as a side dish, to top shepherd’s pie, colcannon, etc. If someone drops by I’ve always got something I can take out & heat. If someone has a baby or a loss, I have cooked turkey, gourmet burgers, smoked ribs, and on and on.