Turn a weekly meal plan into an Instacart grocery cart with Claude

Source checked Oct 30, 2026
Results shared

Beginner-friendlyNo logins, payments or coding needed. Low risk: paste the prompt and you should get something useful.

Copy the prompt below and paste it into the AI tool named on this page.

Prompt Recreated prompt

The source didn't share its exact prompt, so we wrote this from what it describes.

Here's a screenshot of this week's meal plan. Use our saved family recipes and house shopping rules to work out every ingredient, skip what we always keep stocked and build my Publix cart on Instacart. Then tell me what you assumed we already had, anything you substituted and any quantities I should check.

Try this in:

ChatGPT Gemini Grok

Sends the Recreated prompt shown above. ChatGPT and Grok open with it filled in, and ChatGPT may send it straight away. Gemini opens empty, so we copy the prompt for you to paste. Every button also copies it.

The source used Claude. These are general chat tools, so results may differ.

Opens in a new tab. We don't see what you send.

These links are only a shortcut. We're not affiliated with OpenAI, Google or xAI, and your results may not match the source.

Optional stronger version

Our rewrite with extra checks. The poster didn't test it.

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: Turn my weekly meal plan into a ready-to-check grocery cart or list that follows my family's shopping rules.

Questions to ask me first:
- Which store and delivery app do you use, or do you shop in person?
- Which meals does your family make most often?
- What do you always have at home, and what do you buy elsewhere?

Inputs (fill in or confirm):
- This week's meal plan (photo or list): [MEAL PLAN]
- Our regular recipes with quantities: [RECIPES]
- House rules (brands, organic, sizes, things never to buy): [RULES]
- Store and app: [STORE / APP]

Rules:
- Use our saved recipes and quantities instead of guessing.
- Skip anything on the always-stocked list.
- Treat counts carefully: 'two pork shoulders' means two whole roasts, not two pounds.
- Never check out or pay; I review and pay myself.

Checkpoint: Before adding items, list what you'll buy and what you'll skip, and wait for my OK.

If you get stuck: If an item is out of stock or unclear, list it for me instead of picking something random.

Verify before you finish: Check every recipe ingredient is either in the cart or on the skipped list.

Output: A filled cart (or a list grouped by aisle) plus a short list of assumptions, substitutions and quantities to check.

Done when: I review a cart that matches the week's meals, and any correction I make becomes a standing rule.

AI tool

Claude

Outcome

Author Emily Ley set up a Claude Project to take over the weekly grocery thinking. Ley uploaded about 10–15 meals the family makes regularly and wrote house rules: preferred brands, organic and grass-fed choices, and staples never to buy, like spices and minced garlic, plus paper towels bought at Costco. Each week Ley uploads a screenshot of the meal plan from the Notes app, and Claude pulls ingredients from the saved recipes, checks the rules and fills the Publix cart through Instacart, listing what it assumed was already at home, anything it substituted and quantities that need attention. Ley reviews the cart and checks out personally. The first cart needed a few corrections: Claude learned that two pork shoulders means two whole roasts, not two pounds. Ley had Claude turn each correction into a permanent Project instruction.

Evidence: Described by posterThe person describes what happened in words, without screenshots or video.

Source

Posted: Oct 29, 2026 by Emily Ley (Substack)
Last checked: Oct 30, 2026
Method:: How we verify

https://emilyley.substack.com/p/ai-grocery-list

Context: Part of the post, including Ley's full setup prompt, is for paid subscribers. The same setup can produce a list for shopping in person.