Simple work lunches to prep on Sunday, and how long they keep

The simplest work lunches to prep on Sunday are built from a few cooked parts you mix and match through the week: a pot of grains, a tray of roasted vegetables, one protein, a soup and a jar of dressing. About an hour of cooking covers Monday to Wednesday, and the freezer covers Thursday and Friday.

That last part matters more than most meal prep guides admit. Cooked food generally keeps for three to four days in the fridge, so a Sunday cook can't safely feed you on Friday unless some of it goes into the freezer. The plan below is built around that limit.

What should you prep on Sunday?

Skip the seven identical boxes. Cook components instead, so Tuesday's lunch doesn't taste exactly like Monday's. One of each of these is plenty.

A grain or starch

A big pot of rice, quinoa, bulgur, couscous, barley or pasta, or a tray of roasted potatoes or sweet potatoes. Cook enough for three or four lunches. Spread it out on a tray to cool quickly before it goes in the fridge.

A tray of roasted vegetables

Chop whatever you have (peppers, onions, zucchini, carrots, broccoli, squash, cauliflower), toss with oil and salt, and roast until the edges brown. Roasted vegetables keep their texture better than steamed ones and taste good cold.

One protein

Pick one: a tray of baked chicken thighs, a pot of lentils or chickpeas, hard-boiled eggs, baked tofu, or a can of beans rinsed and seasoned. Lentils and beans are the easiest and keep well.

A soup or a stew

A big pot of something like lentil soup, minestrone, dal or chili. Half goes in the fridge, half goes straight into the freezer in single portions.

A dressing or sauce

A jar of lemon and olive oil dressing, a yogurt and herb sauce, or a peanut sauce. Sauce is what turns the same components into different lunches. Keep it separate until you eat.

Five simple lunches to build from it

1. Grain bowl. Grains, roasted vegetables, protein, something crunchy (seeds, nuts, raw cucumber) and dressing on the side. The default lunch of the week.
2. Soup and bread. A portion of soup in a container you can heat, and bread or crackers packed separately so they don't go soggy.
3. Wraps. Warm a tortilla or flatbread, then fill it with roasted vegetables, protein and sauce. Assemble the morning you eat it, or the night before at most, so the wrap holds together.
4. Big salad base. Wash and thoroughly dry sturdy leaves (kale, cabbage, romaine), add chopped raw vegetables, and store it with a paper towel in the container to soak up moisture. Each morning, add a scoop of grains, some protein and the dressing in a separate jar.
5. Dal, curry or chili with a grain. The stew from Sunday over rice or with flatbread. Reheats well, tastes better on day two, and is filling enough to carry you to the evening.

A week of lunches doesn't need five different recipes. Two or three, rotated, is enough to stop it feeling like a punishment.

How long do prepped lunches keep in the fridge?

These are general guidelines, based on the kind of advice food safety bodies such as the USDA give. They assume a fridge at 40°F (4°C) or below and food that went in soon after cooking. When in doubt, throw it out.

Cooked rice is the one to be careful with, because a common bacterium can survive cooking as spores and multiply while rice sits warm. Advice on it varies: the NHS in the UK suggests keeping cooked rice in the fridge for no more than a day before you reheat it, which is stricter than the general three-to-four-day rule. Cool it fast (spread it on a tray), get it into the fridge within an hour or so, and reheat it until it is steaming hot all the way through. The easy way to meet the stricter advice is to eat rice on Monday and freeze the rest of the week's rice portions as soon as they have cooled.

A week that stays inside the limits

A simple shortcut for Thursday and Friday is a ten-minute Wednesday-night cook: a fresh pot of grains or a few eggs, mixed with what's left of the vegetables if they are still within the window.

Packing lunch for work

• Use containers you can heat. Glass or microwave-safe containers save a step at work. Leave the lid loose or open when microwaving.
• Label the date. A strip of masking tape and a pen is enough. It ends the "was this Sunday or last Sunday" question.
• Keep wet and dry apart. Dressing, sauce and bread go in separate pots and bags.
• Mind the trip if there's no fridge. A common food safety rule of thumb is that perishable food shouldn't sit out of the fridge for more than about two hours, less in real heat. With no fridge at work, use an insulated lunch bag with an ice pack, eat earlier, and lean on lunches that are fine at room temperature. Healthy snacks for work with no fridge has the shelf-stable side.
• Reheat properly. Until it is steaming hot all the way through, stirring halfway if you can.

Make the Sunday cook easier to start

The hardest part is remembering to shop for it. A repeating reminder in Reminders on Saturday morning ("lunch shop: grains, vegetables, one protein, soup things") turns it into a list instead of a decision. On a Mac, open Reminders, add the reminder, then click its info button to set a date and a weekly repeat (the exact layout varies a little between versions of macOS).

Make lunch something you step away from the Mac for

A prepped lunch solves the "what" of lunch. It can make the "where" worse: when the food is already in a container, it is very easy to eat it at the keyboard with one hand while answering email. That is a lunch, but not a break. Your eyes, back and head all get more out of 20 minutes somewhere that isn't your desk, even with the same food. Desk lunch vs a real lunch break goes into why.

Two things help. Put a lunch window on your calendar as a repeating weekday event, so meetings go around it. And when the window arrives, take the container to a table, a window or a bench, and leave the laptop where it is.

In Notchpals, that moment belongs to the Meals characters, who come down from your Mac's notch when a meal is due. Maple, a red panda in a scarf who wants you warm and fed, turns up once a day around your chosen lunch time, if you are at the Mac:

MapleLunch, please! Something filling. I'll curl up and wait till you're back.

Done is for when you are actually getting up. Later gives you twenty minutes to finish what you are doing, and then Maple asks once more. Notchpals doesn't know what is in the container, or where you eat it. It just picks a sensible moment, and leaving the laptop behind is up to you.