Meal planning for one works when you plan around pack sizes rather than recipes. Start from what is already in the fridge, only buy fresh things that turn up in at least two of the week’s dinners, weigh dry rice and pasta once so you stop cooking for three, and split any half-pack into the freezer on the day you buy it. That last habit does most of the work. The rest of this is why it works and how to keep doing it.
Why cooking for one wastes more than cooking for four
Almost nothing in a supermarket is sold in a single portion. I hadn’t really noticed this until I was the only person eating. Mince comes in 500g packs, spinach in bags that fill a colander, bread in loaves of twenty slices. A household of four gets through a pack of chicken thighs in one sitting. One person eats two and is left with four thighs and a decision. Friends of mine in shared houses have a version of the same problem, only there the pack sits in a fridge with four other people’s packs and nobody is quite sure whose it is.
WRAP estimates that UK households waste food costing £17 billion a year, an average of £1,000 a year for a household of four, and says nearly 40% of household food waste happens because food was not used in time. That “not used in time” category is where the single cook lives. The pack was fine. The second half just did not get eaten before it went.
So the plan is not about eating differently. It is about making the second half of everything land somewhere useful before it turns.
Plan around the fridge, not the recipe
Before writing anything down, open the fridge and freezer and list what is actually in there. Half a pepper, a lump of cheddar, the end of a jar of pesto, a couple of frozen portions of chilli. The first two dinners of the week come from that list, not from the shop. This sounds too obvious to write down. But most weekly plans start with recipes and work backwards to a list, which is exactly how you end up with a second jar of pesto.
Two dates matter here, and I didn’t properly know the difference until I looked it up. A use-by date is about safety and is not something to cook past. A best-before date is about quality, so a tin or a packet of dried pasta a few weeks past it is fine. The FSA also says leftovers should be eaten within 48 hours, or frozen if that is not going to happen. For one person, “not going to happen” is most of the time, so the decision on the night of cooking is whether tomorrow is a leftover day or a freezer day. Decide it while the pan is still warm.
My rule is to give the top shelf of the fridge one job: “use first”. Anything opened or close to its date goes there, and that is the shelf to look at first at 7pm. A small rented kitchen does not have much space to spare, so I wrote about carving out a shelf like this without buying anything separately.
The three-ingredient overlap trick
Once the fridge list exists, choose five dinners where every fresh ingredient appears in at least two of them. That is the whole rule. A bag of spinach goes into a Monday pasta and a Thursday curry. A pack of chicken thighs does two dinners on its own. A pot of yoghurt tops a curry and makes a dressing.
Photo: Lisa Fotios via Pexels
If there is no second use for something, do not buy it. The exception is anything that freezes well on its own, because then the freezer is the second use. A few boring, flexible ingredients earn their place here: onions, tinned tomatoes, a bag of frozen peas, eggs, cheddar. They fit into almost any dinner, so the overlap is easy. They are the backbone of the cupboard list that makes weeknight cooking automatic.
The shopping list that comes out of this is short. Usually eight to twelve fresh items for a week, plus whatever cupboard thing has run out. It looks like too little the first time. It isn’t. On your own, the honest alternative is cooking the same thing three nights running because the pack demanded it, and this is the way out of that.
Weigh the dry stuff once
Rice and pasta poured by eye are the most reliable source of leftovers in a one-person kitchen, because the eye always pours for two. The British Nutrition Foundation puts a single adult portion of dried rice at 65g, about two handfuls, and dried pasta at 75g; cooked, both come to around 180g. For spaghetti, the guide is a bunch the size of a £1 coin measured between finger and thumb. Both numbers were smaller than I expected, which is the point.
The fix takes five minutes and only has to happen once. Weigh 65g of rice, tip it into a mug and draw a pencil line where it comes to, then do the same with 75g of pasta shapes in a second mug. After that, fill to the line. If you do want extra for lunch, cook double on purpose and box it straight away, which is not the same thing as accidentally cooking for three and finding out at the sink.
Freeze the half-pack on day one
When the shop is unpacked, anything that comes in more than two or three days’ worth gets split immediately, before it goes in the fridge. Not “later in the week”. Then.
The FSA says food can be frozen right up until midnight on the “use by” date printed on the label. There is no reason to push it that far. Freezing on the day of purchase means the food is at its best, and it means the decision is made once, on shopping day, instead of every night. The same guidance says to use food within 24 hours after it has been fully defrosted, so a portion moves from freezer to fridge the night before it is wanted and gets cooked the next evening.
What to split on day one:
- Mince: a 500g pack into two or three flat freezer bags, pressed thin so they defrost quickly on a plate in the fridge.
- Chicken thighs: two per bag.
- Sliced bread: half the loaf into the freezer straight away. It toasts from frozen.
- Grated cheese: freezes fine for cooking, though it goes crumbly in a sandwich.
- Fresh herbs that will not get finished: chopped into an ice cube tray with a little water or oil.
Write the date and the contents on the bag with a marker. A frozen brown lump in a bag is not identifiable three months later, and I wouldn’t trust anyone who says they’ll remember. A standard fridge-freezer drawer holds a good number of flat bags stacked like files, which is more than enough for one person. In a shared house the freezer drawer is contested space, so flat bags with a label on them matter twice over: they take less room and they don’t get mistaken for someone else’s.
What survives freezing and what comes back badly is a subject in itself, and I covered it in what freezes well when you batch cook.
A sample week for one
A worked example. The fridge already holds half a pepper, some cheddar, the end of a bag of spinach and two frozen portions of chilli. The shop is chicken thighs, a bag of spinach, a pot of yoghurt, a pack of mushrooms, an onion, a lemon and a small loaf.
- Monday: a frozen chilli portion, defrosted in the fridge overnight, on 65g of rice, with the old spinach stirred in at the end.
- Tuesday: two chicken thighs roasted with the half pepper and half the mushrooms, on the second mug of rice. The other four thighs went into the freezer on shopping day.
- Wednesday: pasta (75g) with the rest of the mushrooms, garlic, a handful of the new spinach and cheddar on top. Any leftover sauce is Thursday’s lunch, inside the 48 hours.
- Thursday: two thighs from the freezer, moved to the fridge on Wednesday night, cooked with yoghurt, lemon and the rest of the spinach as a quick curry.
- Friday: cheese on toast from the loaf, half of which is already frozen, with whatever is on the use-first shelf on the side.
Nothing in that list was bought for one meal only. The second chilli portion stays in the freezer as next week’s Monday, and at the end of the week the bin has peelings in it and nothing else. That is the test I’d apply to any plan: not whether the dinners were good, but what is in the bin on Sunday.
If you are starting from scratch, the rest of the meal planning section covers the shop, the cupboard and the freezer side in more detail.
