What to do with leftover vegetables before they go off

Learn formats, not recipes

Searching for a recipe that uses half a courgette, three tired carrots and a handful of spinach is a losing game, because no recipe was written for the exact contents of your drawer. What works is a small set of formats flexible enough to take whatever is there.

Five cover nearly everything. Soup: sweat an onion, add whatever is left, cover with stock, simmer, blend or do not. Traybake: cut everything to a similar size, oil, salt, hot oven, roast until the edges catch. Frittata: cook the vegetables down, add beaten eggs, finish under the grill. Stir-fry: hardest vegetables in first, softest last, sauce at the end. Stock: peelings, stalks, onion skins and carrot tops, simmered and strained.

None of these needs quantities and none cares whether the vegetables look good. That is the whole point of them.

Which vegetables are still fine

Softness, wrinkling, limpness and a slightly dull colour are quality changes. A wrinkled pepper, a bendy carrot and a soft courgette are all perfectly good roasted or in soup, where nobody is judging their posture.

The genuine stop signs are different: visible mould, sliminess, an off or fermented smell, or liquid pooling in the bag. Those are the point at which the item goes out. Potatoes that have turned green or sprouted heavily should also be discarded rather than salvaged.

Most produce thrown away in an average kitchen is in the first group, not the second. It was binned for looking tired, which for anything destined for a hot oven is not a reason.

Roast first, decide later

If you have not the energy to cook a meal around them, roast everything on one tray anyway. Roasted vegetables keep three to four days in the fridge as cooked leftovers, which is longer than the raw versions had left, and they turn into a salad, a pasta sauce, a soup or a filling later in the week.

This is the highest-value twenty minutes in a week where things are about to be thrown away. It converts a deadline into an ingredient.

Then stop it happening again

Rescue formats are a genuinely useful skill and they are still downstream of the actual problem, which is that the week bought vegetables it had no plan for. A drawer that needs rescuing every Friday is telling you something about how Sunday's shopping list was written.

Planning meals that reuse the same fresh ingredients across the week is what stops the surplus existing. The soup is what you do when that has already failed.

Common questions

Are soft vegetables safe to eat?

Softness and wrinkling are moisture loss, which is a quality change rather than a safety one, and such vegetables are fine cooked. Mould, sliminess or an off smell mean the item should be discarded.

Can I cut mould off vegetables?

On firm, low-moisture produce like carrots and cabbage, cutting well clear of the mould is generally accepted. On soft, high-moisture produce such as tomatoes, peppers, cucumbers and berries, mould spreads through the flesh and the item should be thrown away.

How long do cooked vegetables keep?

3 to 4 days in the fridge, the same window USDA cold storage guidance gives for cooked leftovers generally.