Food, labour, rent and energy now swallow more than 80 cents of every euro through your till. This is how you point free AI tools at the paperwork you already have and get the leaks back — invoice by invoice, gram by gram, shift by shift.
At a 3% net margin, stopping €1,000 of monthly waste is worth as much to you as selling €33,000 more food. And most kitchens are leaking: restaurants throw away 4-10% of everything they buy, and 30-40% of what goes out on a plate is never eaten. Champions 12.3 tracked 114 sites across 12 countries and found operators saved seven euros for every one they invested in cutting food waste.
The evidence is already in your office — invoices, till exports, rotas, a bank statement, a P&L. What you have never had is the time, or an analyst, to read it. That is exactly the job AI is good at.
Three months of invoices in, a ranked table of price creep out — plus duplicate deliveries and billing errors you never spotted.
AI drafts the price-rise email in your voice with your volumes in it, then second-guesses the quotes you get back.
A three-column paper log by the bin. Photograph it on Sunday, and AI turns it into euros, patterns and one fix for next week.
Cost a dish including the oil, the garnish and the bread — then find three changes no guest will notice.
Forecast covers from your own sales history and build a rota that lands on the labour percentage you actually want.
The three numbers most out of line, what good looks like, what each is worth per month — and the costs you didn't know you were paying.
Open a free AI tool (Claude or ChatGPT), attach three months of supplier invoices — photographs of paper ones work fine — and paste this:
Attached are my supplier invoices for the last 3 months. Build a table of every product bought more than twice, showing: unit price in month 1 vs month 3, % change, units bought per month, and the monthly euro impact of that change. Sort by euro impact, biggest first. Then tell me: the five items where price rises cost me the most; anything that moved more than 10%; any item I'm buying from two suppliers at different prices; and anything that looks like a billing error, a duplicate delivery or a wrong unit.
Most operators find a duplicate invoice or an unchallenged price rise on the first run. The full guide gives you the same treatment for waste, plate costing, rotas, your P&L, shrinkage, energy and recurring bills — plus a 20-minute monthly audit that pulls it all together.
I have sat in the office at midnight with a shoebox of invoices knowing something was wrong and having no idea where. This guide is the version of that night where you get an answer in twenty minutes.
Franky — founder of bridge., 14 years a restaurant manager, founder of All You Can Reserve and Olivia.
Yes. Upload or photograph three months of invoices and a free AI tool will build a table of every product you buy regularly — price in month one against month three, the percentage change, and what that change costs you per month, sorted by the biggest impact. It also flags duplicate deliveries, wrong units and items you are buying from two suppliers at different prices.
Most restaurants aim for 28-32% of revenue on food, and prime cost — food plus labour — should stay under about 65%. Well-run independents clear roughly 3-8% net. Those are reference points, not laws: what matters is knowing your own numbers and which way they are moving.
It does the part nobody has time for. Keep a three-column paper log by the bin, photograph it once a week, and AI costs it, ranks the biggest losses, finds the pattern behind them and tells you the one change that saves the most next week.
Never paste bank logins, card numbers or staff personal data. Invoices, recipes, till exports and P&L lines are fine, and both Claude and ChatGPT let you turn off training on your chats in the settings.
Menu Engineering is about what you charge and how the menu sells. This one is about what everything costs you before a guest has ordered anything — invoices, waste, portions, labour and the bills you signed years ago.