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Plan a week of family dinners for $3.06 a serving from a supermarket sale catalog with ChatGPT

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Devise a 7-night dinner plan for four people with no food allergies. Choose family-friendly recipes with a maximum of eight ingredients with varied protein and vegetables in each. Only include recipes that can be made with items that are in the Woolworths sales catalogue, uploaded. List the ingredients and quantities. Make a weekly summary with the following totals: the original, undiscounted price that the ingredients (in the minimum quantity that can be purchased to make the recipe) would have cost; the sales price of those ingredients today; and the monetary value of the ingredients that will be left over after making the recipes, based on the sales price of the minimum quantity that can be purchased today. Calculate the net cost per serve based on the sales price, removing the cost of the leftover ingredients. Include cooking instructions after each recipe. Make a shopping list of the ingredients at the end.

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Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Plan a week of family dinners using only what's on sale at my supermarket this week, with real costs.

Questions to ask me first:
- How many people are you feeding, and are there allergies or foods someone won't eat?
- How many dinners do you need, and how much time do you have to cook?
- Which supermarket's catalog are you uploading?

Inputs (fill in or confirm):
- This week's sale catalog (PDF or photos): [CATALOG]
- People, allergies and dislikes: [HOUSEHOLD]
- Number of dinners: [NUMBER]
- Pantry staples I already have: [STAPLES]

Rules:
- Use only items you can see in the catalog, plus the staples I listed.
- Keep each recipe to eight ingredients or fewer, with a different protein and vegetable each night.
- Show the regular price, the sale price and the value of any leftover ingredients.
- Don't guess prices for items that aren't in the catalog; mark them clearly.

Checkpoint: Show me the list of dinners first and wait for me to swap any the family won't eat before writing recipes.

If you get stuck: If a page of the catalog is hard to read, tell me which page and ask me for a clearer copy.

Verify before you finish: Check the totals add up and that every ingredient in the recipes is on the shopping list.

Output: Dinner recipes with steps, a cost summary (regular, sale and net per serving) and a shopping list grouped by aisle.

Done when: I have a week of dinners the family will eat and a shopping list priced from this week's sales.

AI tool

ChatGPT

Outcome

Personal finance writer Nicole Pedersen-McKinnon wanted a seven-night dinner plan for a family of four using only ingredients on sale, that the kids would actually eat. Asking ChatGPT and Claude to read Woolworths' online specials pages didn't work; neither could do it accurately. So Pedersen-McKinnon downloaded the current Woolworths sales catalog, uploaded it to ChatGPT and, after a few goes at the wording, asked for recipes of up to eight ingredients, before-and-after prices, the value of leftover ingredients and a shopping list. The week's shop came to $106.85, a saving of $38.85, and the net cost was $3.06 a serving once leftovers were counted. Not every dish was a hit: one child declared 'Salmon is gross.'

Evidence: Article or interviewA newsletter, journalist or interview account of what happened.

Source

Posted
by Nicole Pedersen-McKinnon (The Sydney Morning Herald)
Last checked
Method:
How we verify

https://www.smh.com.au/money/planning-and-budgeting/ai-helped-me-feed-my-family-for-just-3-a-serve-20250620-p5m92w.html

Context: Prices are in Australian dollars. Pointing ChatGPT and Claude at the supermarket's online specials pages didn't work; uploading the catalog did.

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