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Cut solo grocery spend from $680 to $340 with a ChatGPT meal month

WorkedEvidence: Described by posterPosted Last checked

Jake Read let ChatGPT plan 30 days of meals and cut solo grocery spend from $680 to $340.

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Plan all my meals for the next 7 days. I'm one person, cooking for myself, budget is $100/week for groceries. I have a normal kitchen with basic equipment. I can cook but I'm not a chef. I need breakfast, lunch, and dinner plans. Make sure ingredients overlap so I'm not buying 15 different things I'll use once. Give me a grocery list organized by store section. I hate mushrooms. Nothing should take more than 30 minutes to cook on weeknights.

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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 meals and a store-section grocery list inside my solo budget.

Questions to ask me first:
- What is the weekly grocery ceiling and which store?
- Any foods to avoid and max weeknight cook time?
- What pantry staples do I already have?

Inputs (fill in or confirm):
- Budget: [$100 / WEEK]
- Store: [TRADER JOE'S / OTHER]
- Avoid: [MUSHROOMS / …]
- Cook time: [30 MIN WEEKNIGHTS]
- Pantry: [LIST]

Rules:
- Stay at or under the weekly budget with overlapping ingredients.
- No mushrooms or other avoid foods.
- Weeknight dinners ≤30 minutes; weekends may be longer.
- Do not invent store prices; estimate and tell me to verify at checkout.

Checkpoint: Show the 7-day plan and estimated total before I shop.

If you get stuck: If a staple is unclear, ask once rather than adding it every week.

Verify before you finish: Every meal uses listed ingredients; avoid list is clean; estimate is under budget.

Output: Day-by-day meals plus a grocery list by store section.

Done when: I can shop the list once and cook the week without a second trip for basics.

AI tool

ChatGPT

Outcome

Jake Read, founder of Withn, spent $680 on groceries in February for one person, plus takeout. In March 2026, ChatGPT planned every meal for 30 days under a $400 grocery ceiling, no mushrooms, and 30-minute weeknight cooks. Week bills ran $87, $92, $79, and $82 (including a six-person dinner party for $58 of food). March groceries totaled $340—at least $440 under February—with near-zero waste and about 2 hours a week of food-decision time back.

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

Source

Posted
by Jake Read
Last checked
Method:
How we verify

https://withn.tech/blog/i-let-ai-plan-my-meals-for-30-days-and-saved-340-dollars

Context: Self-reported grocery totals and takeout estimates from the Withn founder blog.

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