Cheap healthy meal prep for beginners: shopping list, batch cooking and a sample week

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Meal prep sounds like a whole Sunday of plastic boxes. It does not have to be. For most people, cooking three or four basic components in about two hours covers most lunches and dinners for half a week, and buying the same cheap staples every week keeps the shopping bill predictable.

The idea: components, not full meals

Instead of cooking ten identical boxes of one dish, cook building blocks you can combine differently each day:

a grain or starch
a protein
vegetables
one or two sauces

Rice, lentils, roast vegetables and a yoghurt sauce become a bowl on Monday, a wrap on Tuesday and fried rice on Wednesday.

A week's shopping list approach

Build your list in these groups and buy what is cheapest in each this week:

Grains: rice, oats, pasta, wholemeal wraps or bread.
Cheap proteins: eggs, dried or tinned beans and lentils, chicken thighs, tinned fish, tofu, plain yoghurt.
Frozen vegetables: peas, spinach, broccoli, mixed vegetables. Frozen veg is picked and frozen quickly, keeps for months and cuts waste.
Long-lasting fresh produce: onions, carrots, cabbage, potatoes, apples, bananas.
Flavour: garlic, stock cubes, soy sauce, tinned tomatoes, spices, lemon, chilli.

Buy store brands, compare the price per kilo on shelf labels, and stock up on dry goods when they are on offer.

Batch-cooking the staples

Rice: cook a big pot, then spread it out to cool quickly and refrigerate promptly. Cooked rice left warm at room temperature can grow bacteria (Bacillus cereus) that reheating does not remove.
Lentils and beans: red lentils cook in about 15 to 20 minutes with no soaking and turn into dal or soup. Dried beans are cheapest but need soaking and long cooking; tinned beans are fine and still cheap.
Eggs: hard-boil a batch for breakfasts and snacks, or bake a tray of egg muffins with vegetables.
Chicken thighs: cheaper and juicier than breasts. Roast a tray with spices at the same time as the vegetables. Cook until the thickest part reaches 74°C (165°F) if you use a thermometer, or until the juices run clear.
Roast vegetables: carrots, onions, cabbage wedges and potatoes on one tray.
Oats: make overnight oats in jars with milk or yoghurt and fruit.

How long it keeps

General food-safety guidance from the USDA and FoodSafety.gov is that most cooked leftovers keep 3 to 4 days in the fridge. That covers cooked rice, chicken and most cooked dishes. Hard-boiled eggs in their shells keep longer, around a week. Keep the fridge at about 4°C (40°F) or below and get cooked food into it within two hours, sooner on hot days. That 3 to 4 day window is why many people prep twice a week, or freeze half straight away. Cooked rice, lentils, soups, stews and cooked chicken all freeze well in portions. Thaw in the fridge and reheat until steaming hot all the way through, and only reheat once. When in doubt, throw it out. For any specific food, the USDA's FoodKeeper app and FoodSafety.gov's storage charts are the place to check.

A sample plan

Sunday prep, about two hours: a pot of rice, a pot of red lentil dal, a tray of chicken thighs and a tray of vegetables in the oven together, six hard-boiled eggs, three jars of overnight oats. Breakfasts: overnight oats, or eggs on toast. Lunches

Monday: rice bowl with chicken, roast vegetables and a yoghurt and garlic sauce.
Tuesday: dal with rice and frozen spinach stirred in.
Wednesday: wrap with chicken, cabbage and a boiled egg.

Dinners

Monday: dal with rice.
Tuesday: egg fried rice with frozen peas and soy sauce (cold rice fries best).
Wednesday: pasta with tinned tomatoes, lentils and frozen veg.

Wednesday evening, a quick second prep for Thursday to Saturday: another batch of rice or pasta, a bean chilli from tinned beans and tomatoes, and whatever vegetables are left.

Tips for sticking with it

Start with prepping lunches only.
Use two or three sauces to stop it feeling repetitive.
Label containers with the date.
Keep a "rescue" shelf: eggs, tinned beans, frozen veg and wraps make a meal in ten minutes.

What are your cheapest go-to prep meals? Share them, or ask for ideas for your budget, in the comments.