Tuesday, 6:40 p.m. I opened the fridge and found the usual suspects: half a cabbage, three eggs, a packet of smoked sausage that was two days from its date, and a jar of pickles nobody in the house will admit to buying. Dinner needed to exist in forty minutes, and nobody wanted to decide what it was. That is the exact moment most home cooks reach for their phone — not for a recipe app, but for a chatbot.
I spent two weeks cooking this way on purpose. Every weeknight dinner, every shopping list, every sad leftover rescue went through an AI first, and I cooked whatever it suggested, even when I was suspicious. Some nights were genuinely good. One night was inedible. The difference, almost every time, was not the chatbot. It was the prompt.
This pack is the result: thirty prompts that survived a real kitchen, organised by the jobs home cooks actually have — weeknight dinners, shopping, leftovers, fussy eaters, and batch cooking. Copy them as they are, then change one line to fit your fridge. That last part matters more than the prompts themselves.
The weeknight test: what actually happened
On the first night I typed the lazy version: “Give me a dinner recipe.” What came back was a lemon-herb chicken with a side I did not have ingredients for, a cooking time of fifty minutes, and a shopping list of eleven items. I had forty minutes and half a cabbage. So I rewrote the prompt with constraints — time, ingredients, equipment, and the number of people — and the answer changed completely.
The prompt that worked looked like this:
“Plan a dinner for 2 adults and 1 child, ready in 35 minutes, using only a stovetop and one pan. I have: half a cabbage, 3 eggs, smoked sausage, rice, onions, and basic spices. No oven. Give me the steps in order, with timings, and tell me what to prep first.”
That gave me a cabbage-and-sausage fried rice with a fried egg on top, and it was on the table in thirty-one minutes. I timed it. The lesson stuck for the whole fortnight: an AI is a brilliant sous-chef and a terrible mind reader. If you do not tell it your constraints, it will invent a kitchen you do not own.
Here is my stance, and I know some readers will disagree: a vague prompt is worse than no prompt at all, because it sends you to the shop for ingredients you will use once. Specificity is not extra work — it is the whole skill. The prompts below are written to force that specificity in.
Weeknight dinners: 8 prompts
- “Plan a dinner for [number] people, ready in [minutes] minutes, using only [equipment, e.g. one pan and a stovetop]. I have: [list what is in your fridge]. No oven. Give steps in order with timings.”
- “Give me 5 dinners I can cook this week using chicken thighs, each under 30 minutes, with no ingredient repeated as the main flavour twice.”
- “I am tired and do not want to chop anything. Suggest a dinner with under 5 minutes of prep, using pantry staples, for 2 people.”
- “Turn these leftovers into tonight’s dinner: [list them]. I want one pan, under 25 minutes, and something my 8-year-old will eat.”
- “Suggest a vegetarian dinner that is filling enough for someone who normally eats meat, ready in 30 minutes, with protein in every component.”
- “I have 20 minutes and a bag of frozen mixed vegetables. Give me a dinner that does not taste like a compromise.”
- “Plan 3 dinners around one roast chicken: night one the roast, night two a new dish from the leftovers, night three soup or stock. Include storage instructions between nights.”
- “Rewrite this recipe for a smaller kitchen: no food processor, no blender, one small hob. [Paste the recipe.] Keep the flavour, cut the equipment.”
Shopping lists that survive the supermarket: 6 prompts
The second thing I tested was shopping. I gave the chatbot my weekly meal plan and asked for a list, then took it to a Lidl on a Saturday morning and checked what came back. The first list was fine but wasteful: it asked for a whole bunch of fresh coriander for one garnish, and a 1kg bag of rice when I already had one at home.
The fix was a prompt that asks the AI to check against what you already own and to merge quantities across the week:
- “Here is my meal plan for the week: [paste it]. Build one shopping list, grouped by supermarket section (produce, dairy, meat, pantry). Merge duplicate ingredients into single quantities, and flag anything I probably already have at home.”
- “Turn this shopping list into a budget version under €40 for a family of 4 in Germany. Swap branded items for store brands and suggest one cheaper protein swap per meat dish.”
- “I shop at [Aldi/Lidl/Tesco/Carrefour]. Rewrite this list using that store’s typical own-brand product names where possible, and note anything I should buy frozen instead of fresh to save money.”
- “Check this meal plan for waste: which fresh ingredients will I buy but only use once? Suggest a second use for each, or swap it for something already on the list.”
- “Build a pantry-staples list for someone who cooks 4 nights a week: the 25 items that cover the most recipes, with quantities for one month.”
- “I forgot to buy [ingredient]. Suggest 3 substitutes I might already have, ranked by how close the taste will be, and tell me what to change in the recipe for each.”
Leftovers, the honest section: 6 prompts
Leftovers are where AI cooking advice usually falls apart, because the chatbot cannot see your fridge and will happily suggest a “leftover stir-fry” that is really just a new shopping list. The prompts that worked named the exact leftovers and banned new purchases:
- “I have leftover roast potatoes, half a roast chicken, and gravy. Turn them into a new dinner for 3 people with NO additional shopping. If a dish needs an ingredient I did not list, do not suggest it.”
- “What can I do with 4 egg yolks left from a meringue? Give me 3 options: one sweet, one savoury, one that freezes well.”
- “I have stale bread, 2 overripe bananas, and a tin of chickpeas. Give me one recipe per ingredient that uses it up today, each under 20 minutes.”
- “Plan a ‘use-it-up’ Friday dinner from whatever is left in a typical fridge at the end of the week. Include a rule: nothing new may be bought.”
- “Is this still safe to eat? I cooked rice on [day], refrigerated it within an hour, and it has been in the fridge for [number] days. Give me the food-safety guidance, not a guess.”
- “Turn last night’s pasta into a packed lunch that still tastes good cold, for a teenager who refuses sandwiches.”
A quick safety note that is worth more than any prompt: rice is the one leftover where I stopped trusting the chatbot’s confidence. When I asked about three-day-old rice, it gave me a breezy “should be fine” — but the standard guidance in the UK and across Europe is to eat refrigerated rice within 24 hours and reheat it until steaming hot throughout. I now check food-safety questions against official sources, not chatbots. AI is a recipe helper, not a food-safety authority, and any article that tells you otherwise is being reckless.
Fussy eaters and special diets: 5 prompts
- “My child eats pasta, chicken nuggets, and carrots, and rejects everything green. Suggest 5 dinners that gradually introduce one new ingredient each week without a mealtime battle.”
- “Adapt this recipe to be gluten-free: [paste it]. List every swap, and flag any swap that changes the texture so I know what to expect.”
- “Plan a dairy-free birthday dinner for 6 that does not feel like a compromise menu — no dish should announce that it is dairy-free.”
- “One guest is vegetarian, one is lactose-intolerant, one eats everything. Plan a 3-course dinner where everyone eats the same main, with at most one small adjustment per course.”
- “My partner is trying to eat less salt for blood pressure reasons. Rewrite this recipe with lower sodium, keeping the flavour: suggest herbs, acids, and umami instead of just removing salt.”
Batch cooking and the freezer: 5 prompts
- “Plan a 2-hour Sunday batch-cook session: 3 freezer-friendly meals for a family of 4, using one oven and one hob, with a minute-by-minute schedule.”
- “Which of these 5 recipes freeze well, and which turn to mush? [Paste them.] For the ones that freeze, give me thawing and reheating instructions.”
- “Build a freezer inventory system: a simple list format I can keep on my phone, so I stop finding mystery containers from March.”
- “I have a slow cooker and 15 minutes in the morning. Give me 5 dump-and-go dinners, one per weekday, with no browning step.”
- “Turn this week’s meal plan into a prep plan: what can I chop, marinate, or cook on Sunday so weeknights take under 20 minutes?”
Three prompts that flopped in my kitchen
Honesty section, because a pack that only reports wins is marketing, not testing.
First, “Surprise me with something creative using what I have” produced a cabbage-and-egg “tacos” idea that sounded fun and tasted like a dare. Creativity without constraints is how you end up eating a dare.
Second, “Make this recipe healthier” on a beloved family stew quietly removed half the fat and all of the joy, and nobody finished their bowl. The better prompt is “keep this recipe recognisable, but reduce the fat by a third” — a target, not a direction.
Third, “Give me a dinner my kids will love” gave me chicken nuggets and chips, because the AI optimised for the safest answer. If you want your kids to actually expand their tastes, prompt for the stretch: “a dinner with one familiar food and one new food, where the new food is not the main event.”
One last thing: your data in the kitchen
European cooks should know one practical thing before pasting their lives into a chatbot: a shopping list reveals your household size, your diet, your religion, and sometimes your health conditions. Under GDPR you have the right to know what a provider stores and to ask for deletion, but the simplest protection is free — do not paste anything you would not want printed on a postcard. Use the prompts above with ingredients and rough quantities, never with your name, address, or medical details. Our earlier guide on checking whether an AI tool is GDPR-compliant before you sign up walks through the settings worth changing on the big providers.
Short version, for the fridge door:
- Name your constraints. Time, people, equipment, ingredients.
- Ban new shopping in leftover prompts.
- One new food at a time for fussy eaters.
- Never trust a chatbot on food safety — check the official guidance.
- Copy the prompt, change one line, cook, repeat.
Dinner tonight is the cabbage-and-sausage fried rice, by the way. It earned a second outing.
Related reading: How to Plan Your Weekly Meals with AI — https://promptskill.site/how-to-plan-your-weekly-meals-with-ai/ — and 30 AI Prompts for Chefs and Restaurant Owners — https://promptskill.site/30-ai-prompts-for-chefs-and-restaurant-owners/