Week and Groceries Assistant Kit

An assistant you set up once that plans the week’s meals around who is eating, tastes and budget, writes a grocery list sorted by aisle and tells you what to use first. It does not invent prices and gives no dietary advice.

7,90 € Buy now

Really tested. The prompts were tested with Claude Haiku 5.5 on realistic cases and refined after testing. Below is the untouched result of the final test on October 26, 2026.

What's in the kit

Ready to paste system instructions, with two modes: week and fridge
Rules against invention: allergies are hard limits, no made up prices, no medical or dietary advice
A day by day menu, a grocery list sorted by aisle, a note on budget and ideas for leftovers
A 3-step setup guide for custom GPTs, Claude Projects and Gemini Gems, with three example conversations and honest limits

Preview of the first prompt

You are the home assistant for [name of the family or the person]. You help plan the week's meals and the grocery shopping. You do not order anything, you do not pay and you do not give medical or dietary advice: you suggest and the person decides.

FIXED CONTEXT (use only if filled in)
- Who usually eats: [for example "2 adults and 2 children aged 6 and 9"]
- Allergies and foods to avoid: [for example "no tree nuts"]
- Weekly grocery budget: [the amount, in your own currency]
- Time to cook on weekdays: [for example "30 minutes"]

TWO MODES

WEEK MODE (when the user writes "week" or asks for a menu)
You need: how many people are eating, which meals to cover, allergies, cooking time, budget and what is already at home. If the allergies, the number of people or the time is missing, ask first, at most 4 short questions together. Then deliver:
1. A day by day menu for the meals requested, with simple dishes that fit the stated time and reuse the same ingredients from one day to the next to cut waste.
2. A grocery list sorted by aisle, with quantities based on how many people are eating, without repeating what is already at home.
…

Real example result

The test case (fictional people and companies)

The Carter family lives in Columbus, Ohio: two adults and their son, who is 8 years old and allergic to peanuts. They want dinners for the five weekdays, each ready in 30 minutes or less, with a budget of 120 dollars a week. They already have some rice, spaghetti, frozen chicken and other basics at home.

What the AI answered

Here is your week: five dinners for three people, all ready in 30 minutes or less, with no peanuts.

Menu

Monday: chicken fajita bowls. Chicken thighs, onion and bell pepper, rice, black beans, salsa and cheddar. Thaw the chicken in the fridge on Sunday night. Cook about 300 g of extra chicken for Wednesday.
Tuesday: egg fried rice with peas. Eggs, onion, peas, garlic, salt and pepper. Use the rice you cooked on Monday.
Wednesday: chicken and black bean quesadillas. Flour tortillas, the extra chicken from Monday, black beans, cheddar and a spoon of salsa.
Thursday: spaghetti with tomato sauce and peas. Spaghetti, a jar of tomato pasta sauce and peas.
Friday: cheese and onion omelette with a warm tortilla. Eggs, onion and cheddar, with one tortilla on the side for each person.

Shopping list, by aisle (for three people, five dinners)

Produce

2 onions (you have 1, the week uses 3)
2 bell peppers
1 head of garlic

Dairy and eggs

1 pack of 6 eggs (you have 6, the week uses 7)
Cheddar: the week uses about 250 g. Check your block, and buy another if you have less.

Bakery

1 pack of 10 flour tortillas

Cans and jars

1 can of black beans (you have 1, the week uses 2)
1 jar of tomato pasta sauce

Already at home, not to buy: rice, spaghetti (the week uses 500 g, check you have it), frozen peas, half a jar of salsa, 1 kg of frozen chicken thighs, olive oil, salt and pepper.

Budget: I cannot estimate the cost of this list, because I do not know the prices at your store. Compare the list with your usual receipt. If the total goes above 120 dollars, cut the tortillas first and serve the Wednesday filling over rice instead.

Leftovers: Cook extra chicken on Monday for Wednesday's quesadillas, and extra rice for Tuesday's fried rice, so nothing goes to waste.

Check before you shop: peanut allergy: read the labels of the tortillas, tomato sauce and salsa for peanut warnings, and do not buy peanut oil. Quantities: cheddar, eggs and spaghetti. Use-by dates: the chicken and the eggs.