Sunday meal prep: a complete guide for beginners

Sunday meal prep means preparing, in a single session, several meals or food components meant to be eaten through the week. Done well, this method saves 4 to 6 hours of weekly cooking, sharply reduces food waste, and mechanically improves nutritional balance because it forces you to plan ahead instead of improvising tired on a weekday.

Before you start, choose your method. The “finished meals” version prepares 5 to 7 identical portions of the same dish — simple, but boredom arrives around day three. The “components” version prepares 4 to 5 separate bases (cooked starches, roasted vegetables, proteins, sauces) to recombine differently each day — more variety for the same total time. To start in a way that lasts, choose components.

Minimum equipment: six to eight airtight containers, ideally clear and stackable. Visibility in the fridge is half the work — what you see, you eat; what ends up at the back ends up in the trash. A large baking sheet to roast vegetables in bulk. A pot or pressure cooker for starches. No food processor or exotic gear needed at the start.

A typical 90-minute routine: during the first 15 minutes, get going — preheat the oven, put water on to boil, wash the vegetables. From 15 to 50 minutes, parallel cooking — vegetables in the oven, starch in a pot, protein in a pan. From 50 to 75 minutes, finishing — sauces and vinaigrettes, rapid cooling of hot dishes. From 75 to 90 minutes, packing — portion into containers, label, store in the fridge.

What to prepare in practice: two cooked starches (brown rice, quinoa, whole-grain pasta, or roasted sweet potato), a large amount of roasted vegetables (peppers, zucchini, red onions, broccoli — depending on the season), a simple protein (roast chicken, marinated tofu, cooked lentils, or hard-boiled eggs), a sauce that changes everything (tahini vinaigrette, herbed yogurt sauce, pesto). These 4–5 bases recombine into 5 to 7 different meals.

Fridge storage times: cooked meat and fish 3 days, cooked rice and pasta 4–5 days, roasted vegetables 5 days, cooked legumes 5 days, homemade sauces 4 days. Beyond that, freeze in individual portions (freezing extends these times to 2–3 months). Check your fridge temperature: 4°C maximum, ideally 2–3°C in the cold zone.

Foods that do not hold up to batching: raw leafy greens (they wilt), fried foods (they lose their crunch), mashed potatoes (texture degrades in storage), cut avocado (it oxidizes even with lemon), fritters and breaded items. Prepare those the day you eat them, separately from the rest.

Beginner mistake no. 1: too much ambition. 8 different recipes for 5 people on a Sunday afternoon = three and a half hours of cooking, components forgotten at the back of the fridge, and quitting in week two. The golden rule: start small. 90 minutes, 4 bases, 5 meals. You can get more elaborate later, never earlier.

Mistake no. 2: no planned “wildcard” night. Fatigue, a craving for something else, an unexpected event — and half the containers end up forgotten. Explicitly keep one night with nothing prepared during the week. That is what makes the system lasting rather than oppressive.

Mistake no. 3: not revising the grocery list against what is already in the fridge. Cooking what you already have before buying new is still the first anti-waste rule. Daizu already limits purchases to the program’s ingredients; a glance in the fridge before you leave saves another €10–15 a week on average.

Link with Daizu: Daizu generates a nutrition program compatible with meal prep (recombinable components, storage times respected), aggregates the grocery list by aisle, and adapts portions to the number of people eating. The app does not spare you the cooking — it spares you the decisions and the organization, which are the real mental load.