Use it up
What to Do With Leftover Roast Vegetables: Lemon Couscous Bowls
Turn leftover roast vegetables into lemony couscous bowls with chickpeas, herbs, and a flexible feta or yoghurt finish.
- TIME
- 20 min
- SERVES
- 4
The easiest answer to what to do with leftover roast vegetables is to stop cooking them like raw vegetables. They have already browned and softened. Fold them through lemony couscous with chickpeas and herbs, and yesterday’s side dish becomes a 20-minute lunch or dinner.
This bowl works because the couscous is deliberately simple. It catches the oil, seasoning, and caramelised edges already on the vegetables without burying them under another heavy sauce. Chickpeas make the bowl feel complete; lemon and herbs bring the leftovers back to life.
Which roast vegetables work?
Almost any mixed tray works: carrots, onion, cauliflower, peppers/capsicum, courgette/zucchini, aubergine/eggplant, squash, broccoli, or sweet potato. Cut very large pieces into bite-size chunks after reheating.
Very soft vegetables may break into the couscous, which is fine. If the tray includes crisp roast potatoes, reheat them separately in the oven and add them on top so their edges stay crisp.
When should leftover vegetables be discarded?
Only use vegetables that were cooled and refrigerated promptly. USDA guidance recommends using refrigerated leftovers within three to four days. If they sat out for too long, show mould, smell wrong, or you are unsure how they were stored, discard them. Read the USDA leftovers guidance.
If reheating, heat the vegetables until they are steaming hot throughout, in line with UK Food Standards Agency leftovers guidance.
Make the bowl with what you have
No couscous? Use cooked bulgur, quinoa, rice, or another grain, following the package instructions for that grain. No chickpeas? White beans or lentils work. Parsley, mint, basil, dill, coriander/cilantro, or tender spinach can all provide the green finish.
The same vegetables can take a different route tomorrow. Simmer them into clean-out-the-fridge vegetable soup, spoon over flexible green herb sauce, or fold smaller pieces into an anything-in-the-fridge frittata.
From fridge to table
How to make it
- 01
Check that the roast vegetables were cooled and stored safely. If you are unsure how they were handled, do not use them.
- 02
Put the couscous in a heatproof bowl, pour over the boiling stock, cover, and leave for 5 minutes.
- 03
If you want the vegetables warm, spread them on a tray and heat at 180°C / 350°F for 8–10 minutes, until steaming hot throughout. They can also be used cold if they were stored safely.
- 04
Zest the lemon over the couscous. Add the olive oil and half the lemon juice, then fluff thoroughly with a fork.
- 05
Fold in the chickpeas, roast vegetables, and herbs. Taste and add more lemon, salt, or pepper.
- 06
Divide into bowls and finish with feta or a spoonful of yoghurt, if using.
