Think of a fixed lunch menu like buying groceries in bulk – customers get better value, and you pocket higher margins. Smart ingredient combinations paired with limited choice create this win-win scenario. Calculate whether a fixed menu makes financial sense with these steps.
Why fixed menus are often more profitable
A fixed lunch menu lets you purchase fewer different ingredients, securing better wholesale prices. You'll also eliminate waste since you know exactly how much to prep.
- Fewer ingredients = better purchase prices
- Predictable quantities = less waste
- Faster preparation = lower labor costs
- Simpler inventory = less capital tied up
Calculate the cost of your current à la carte lunch
Before assembling a fixed menu, analyze what you're earning now. Pull your 5 most popular lunch dishes and calculate the average food cost. This becomes your baseline – the kind of thing you only learn after closing your first month at a loss.
💡 Example current situation:
Your 5 most popular lunch dishes:
- Club sandwich: €12.50 (food cost €4.20 = 33.6%)
- Caesar salad: €11.00 (food cost €3.80 = 34.5%)
- Soup + roll: €9.50 (food cost €2.85 = 30.0%)
- Pasta pesto: €13.00 (food cost €4.55 = 35.0%)
- Quiche + salad: €10.50 (food cost €3.40 = 32.4%)
Average food cost: 33.1%
Design your fixed lunch menu strategically
Select dishes that share overlapping ingredients. You'll buy larger quantities at better prices this way.
- Base ingredients: Use the same vegetables across multiple dishes
- Seasonal products: Pick ingredients that are cheap right now
- Shelf-stable basics: Pasta, rice, bread as foundations for variety
- One protein: Focus on chicken or fish or vegetarian
💡 Example fixed lunch menu (3 courses):
Menu of the day for €16.50:
- Tomato soup with basil: €1.20
- Chicken fillet with seasonal vegetables: €4.80
- Homemade ice cream: €0.80
Total food cost: €6.80 = 28.5% of €16.50 (excl. VAT €15.14)
Compare profitability
Now compare numbers from your current à la carte lunch with the fixed menu. Always calculate excluding VAT for a fair comparison.
⚠️ Important:
Always calculate with prices excluding VAT. Lunch has 9% VAT, so €16.50 incl. VAT = €15.14 excl. VAT.
Calculate the difference in margin per guest:
- À la carte average: €11.50 excl. VAT, food cost 33.1% = €3.81
- Fixed menu: €15.14 excl. VAT, food cost 28.5% = €4.31
- Difference in costs: €4.31 - €3.81 = €0.50 more costs
- Difference in revenue: €15.14 - €11.50 = €3.64 more revenue
- Extra profit per guest: €3.64 - €0.50 = €3.14
Calculate the impact on an annual basis
If you track your average daily lunch count, you can project what the fixed menu will earn annually.
💡 Example annual impact:
With 40 lunch guests per day, 5 days per week:
- Extra profit per guest: €3.14
- Per week: 40 × 5 × €3.14 = €628
- Per year: €628 × 52 = €32,656
Annual €32,656 more profit from fixed lunch menu
Communicate the benefits to your guests
Guests need to understand why the fixed menu appeals to them. Focus on quality, freshness, and value for money.
- "Daily fresh menu" sounds better than "fixed menu"
- Highlight seasonal products (justifies changes)
- Compare prices: "3 courses for €16.50, separately this would cost €22"
- Chef's choice positioning: "Our chef selects the finest ingredients daily"
Test and measure your results
Launch the fixed menu alongside your à la carte options. After 4 weeks, measure what percentage of guests choose the fixed menu and track the impact on your average bill.
- Percentage of guests choosing fixed menu
- Average lunch bill value (before and after)
- Total food cost percentage lunch
- Customer satisfaction (reviews, comments)
How do you calculate if a fixed lunch menu is more profitable? (step by step)
Calculate your current average lunch food cost
Take your 5 most popular lunch dishes and calculate the food cost per dish. Add up the food costs and divide by 5 for your average. This is your benchmark.
Design a fixed menu with overlapping ingredients
Choose 3-4 dishes that use the same base ingredients. Calculate the total food cost of this fixed menu and divide by your desired selling price (excl. VAT).
Compare margin per guest and calculate annual impact
Subtract costs from revenue for both scenarios. Multiply the difference by your number of lunch guests per year to see the total impact.
✨ Pro tip
Test your fixed lunch menu for exactly 3 weeks on Tuesdays only – track uptake rates and ingredient waste daily. This gives you solid data without risking your busiest service days.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
Should I completely abolish my à la carte lunch?
No, launch the fixed menu alongside your existing options. After a month, measure what percentage of guests choose the fixed menu. If it's above 60%, you can consider switching completely.
How often should I change the fixed menu?
Change it at least every 2 weeks, ideally weekly. Guests want variety, and you can capitalize on seasonal products and supplier deals for even better margins.
What if guests complain about limited choice?
Offer the fixed menu alongside 2-3 regular à la carte options. Position it as 'chef's choice' or 'daily fresh menu' instead of 'fixed menu'. Most guests appreciate the quality and price combination.
Can I also create a fixed dinner menu?
Yes, the same principles apply. With dinner you can often charge higher prices and offer more courses, potentially creating even greater impact than lunch.
How do I prevent over-ordering for the fixed menu?
Start conservatively and track daily how many guests select the fixed menu. After 2 weeks you'll see patterns and can adjust ordering accordingly. Plan for 80% of your expected guest count.
What's the minimum guest volume needed to make this profitable?
You need at least 25-30 lunch guests daily to see meaningful bulk purchasing benefits. Below this threshold, the ingredient overlap advantages become minimal and waste risk increases.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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