Five steps. About 15 minutes. Then dinner is sorted every week.
Meal OS runs inside Claude — a free AI tool made by Anthropic. If you already have a Claude account, skip ahead to Step 2.
Claude is an AI assistant made by Anthropic. Create a free account to get started — no credit card required.
Projects are Claude's memory system — they let you store your household profile permanently so you never have to re-paste it. This is what makes Meal OS "set and forget."
Projects store context for ongoing work.
The system prompt is the brain of Meal OS — it tells Claude how to think about your household, what food rules to follow, and exactly how to format your weekly plan.
This is the most important step — and the most personal. Your family profile is what makes every plan yours. Take 10 minutes now. You'll never have to do it again.
You're set up. Time to test it. Open a new chat inside your Project and type the magic words.
Every command you need. Screenshot this page or keep this tab open on Sunday mornings.
| Type this | What happens |
|---|---|
make this week's plan |
Full 5-dinner plan + grocery list, built for your household |
swap [meal name] |
Replace one meal, keep everything else |
use up [ingredient] |
Rebuild the plan around an ingredient you need to use |
add a night |
Add a 6th dinner — good for guests or batch cooking |
what can I make tonight? |
3 dinner ideas from what's likely already in your fridge |
lighter week |
Adjust all meals to be lower in carbs / higher in protein |
budget week |
Rebuild with maximum ingredient overlap and cheapest proteins |
rejected: [meal name] |
Ban a meal permanently — it'll never be suggested again |
show my grocery list |
Re-display this week's list in case you need it at the shops |
online order format |
Reformat the list for easy copy-paste into a delivery app |
You've done the one-time setup. From here, it's one message on Sunday — and dinner plans for the whole week, every week, built for your family.