How to plan your weekly meals and grocery list with AI (with prompts to copy)

“What’s for dinner?” is probably the most-asked question in any household. An AI assistant can answer it for the whole week, grocery list included. Here’s how to do it well.

⚕️ AI can help you get organized, but it doesn’t replace a registered dietitian. If you have allergies, intolerances, are pregnant or have a health condition, follow your healthcare provider’s guidance.

Step 1: give it context

The more you tell it, the better. This base prompt works really well:

We're [number] people at home ([ages]). We eat [at home / out at lunch].
Likes: [what you enjoy]. We don't eat: [allergies, dislikes].
Time to cook: [20 minutes on weekdays, more on weekends].
Rough budget: [$X a week].
Make me a Monday-to-Sunday menu with lunch and dinner, balanced and varied,
following healthy eating guidelines. Put it in a table.

Step 2: the grocery list

Once you like the menu, ask:

Now make me the grocery list grouped by store section (produce, meat and fish, dairy, pantry), with rough quantities for the whole week.

That way you don’t overbuy and you move through the store faster.

Step 3: tweak freely

The first version is rarely perfect. Reply with changes:

“Swap Tuesday’s fish for something cheaper.”
“I get home late on Thursday: make it something that takes 10 minutes.”
“Have Sunday’s cooking cover Monday’s and Tuesday’s lunches too.”

5 uses you’ll love

🧊 Clear out the fridge

I have half a zucchini, 3 eggs, some cheese, rice and tomatoes. What can I make for two for dinner in 20 minutes?

Perfect for wasting less food.

🍱 Meal prep

Design a 2-hour Sunday cooking session to prep meals for Monday to Wednesday. Tell me the order of the steps.

👶 Kid-friendly menus

Healthy dinner ideas that kids aged 6 and 9 who don’t eat many vegetables will actually like.

💵 Eat well for less

Make me a healthy weekly menu for two people on a $70 budget using beans, eggs and seasonal vegetables.

More money-saving ideas in budgeting with AI.

🥦 Adapt recipes

This lasagna recipe serves 6: scale it down to 2 and make it lighter.

Mistakes to avoid

❌ Trusting the exact calories a chatbot gives you: they’re approximate. See AI calorie-counting apps.
❌ Asking for extreme diets to lose weight fast. An AI doesn’t know your medical history.
❌ Skipping the allergen check. Always read product labels if anyone at home has allergies.

Bonus tip: save it as a standing instruction

If you’ll use it every week, save your preferences in ChatGPT’s custom instructions or as a skill in Gemini, so you don’t have to repeat them. More in how to write good prompts.