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Willemspark (Denneweg area) · The Hague · Netherlands

Calla's

Michelin-starred French restaurant in The Hague with a kitchen shaped by its own biodynamic vegetable garden in the Wassenaar dunes.

The essentials, at a glance

◐
Impact score
3 - Endorsed
→
Documented practices
Local sourcing
Seasonal cooking
Sustainable meat/fish
Health-intentional kitchen

Style
Fine dining
Cuisine
French
Good to know
Bar

The delicious details

Calla's occupies a converted 19th-century carriage house between the Denneweg and Koninginnegracht. Chef Ronald van Roon cooks in a classical French register, building dishes around light sauces, North Sea seafood, and the daily harvest from Laantje Voorham, the restaurant's biodynamic vegetable garden in a Wassenaar dune hollow.

The garden, tended by grower Arie Voorham, supplies rare herbs, heritage vegetable varieties, and seasonal produce that van Roon collects each morning. From May to September, the harvest inspires a dedicated vegetarian course. Local honey from neighbouring beekeeper Jan ter Schegget rounds out the patisserie.

The 36-seat dining room pairs white surfaces with dark-brown walls; a champagne lounge and eight-seat chef's table at the open kitchen offer alternative perspectives on the cooking.

Menu
What's on the table, and what's left off

Classical French kitchen with set menus of four to seven courses. North Sea seafood and breed-specific meats anchor the plates, alongside daily-harvested ingredients from the restaurant's own biodynamic garden in Wassenaar. A dedicated vegetarian course appears from May to September.

Cuisine
French
Dietary options
Vegetarian options
Vegan-friendly
Gluten-free options
Health-intentional kitchen✓
Specific health practices named in at least one sub-area
Researched

Scratch-cooked dishes from whole, daily-harvested biodynamic ingredients sourced from the restaurant's own Laantje Voorham garden in Wassenaar. Light sauces replace heavy butter-and-cream; the kitchen prepares ingredients simply to let natural flavour carry the dish. Independently confirmed by Gault&Millau, Lekker.nl, and Michelin Guide.

Allergies handling
Notice At booking

Notify the restaurant at booking of any allergies or dietary requirements; the kitchen accommodates these on a per-booking basis, with gluten-free options available.

Impact score
How this restaurant rates
3 - Endorsed

The strongest signal is Laantje Voorham, the restaurant's own biodynamic vegetable garden in Wassenaar, where chef van Roon harvests herbs, vegetables, and rare heritage varieties daily. A neighbouring beekeeper, Jan ter Schegget, supplies linden honey for the patisserie.

Named breeds and regional provenance—Zeeland flat oysters, North Sea crab, Hereford beef—indicate sourcing awareness, though no formal sustainable seafood certifications (MSC, ASC) are held. The menu rotates seasonally, anchored to the garden's output and a jointly developed cultivation plan.

The impact dimensions
Local & direct sourcing✓
Seasonal cooking✓
Sustainable animal products✓
Plant-forward menu

Own biodynamic garden in Wassenaar supplies herbs and vegetables harvested daily; named local beekeeper provides honey; regional seafood and breed-specific meats complete the sourcing.

The restaurant's own biodynamic garden, Laantje Voorham, in Wassenaar (tended by Arie Voorham), supplies herbs, heritage vegetables, and seasonal produce harvested two to three times daily by chef van Roon. Neighbouring beekeeper Jan ter Schegget provides linden honey. Fish comes from Scheveningen Seafood Auction; named breeds for meat (Hereford, Holstein, Anjou pigeon); regional seafood includes Zeeland flat oysters, North Sea crab, and bouchot mussels.

Michelin Guide, Gault&Millau, ChefsFriends, and Lekker independently confirm the garden sourcing and direct relationships.

Strongest sourcechefsfriends.nl ↗

Menu rotates with seasonal availability; dedicated vegetarian offerings appear May–September driven by the garden harvest, guided by a jointly developed cultivation plan.

Menu rotates by period (dated PDFs: January 2026, September 2025) with seasonal ingredients including pumpkin, chicory, blood orange, chestnut mushroom, and seasonal truffles. Chef van Roon and grower Arie Voorham develop a joint cultivation plan to optimise seasonal variety. From May to September, a dedicated vegetarian course on tasting menus is built entirely from the garden's seasonal output.

Multiple independent sources (Michelin Guide, Gault&Millau, ChefsFriends) confirm this seasonality practice.

Strongest sourcechefsfriends.nl ↗

Named breeds for meat (Hereford, Holstein, Anjou); regional seafood with partial traceability (Zeeland oysters, North Sea crab, Scheveningen Seafood Auction); no formal certifications held.

Meat sourcing identified by breed (Hereford beef, Holstein striploin, Anjou pigeon, farm-raised duck). Regional seafood includes Zeeland flat oysters, North Sea crab, rope-grown bouchot mussels, and fish from Scheveningen Seafood Auction. Foie gras was historically served and removed from the menu in early 2025 following activist pressure.

No formal sustainable seafood certifications (MSC, ASC) or animal welfare certifications (Beter Leven, organic) are held for any product category.

Strongest sourcegault-millau.nl ↗

Fish and meat anchor the menus; vegetarian and vegan options available on request, with a dedicated vegetarian course May–September.

The seven-course Prestige menu includes one vegetarian course (topinambur with chestnut mushroom) among five savoury courses. The four-course Allure menu contains no vegetarian course, and the à la carte lists no vegetarian mains. Chef van Roon states 'I use much vegetarian', and from May to September a dedicated vegetarian signature course appears on tasting menus.

Vegetarian and vegan options are available on request (confirmed by Lekker.nl and TripAdvisor). The menu's structural emphasis remains on North Sea fish and meat as primary proteins.

Strongest sourcerestaurantcallas.nl ↗
Sourcing signals
✓
Own-grown produce
✓
Direct named-farm sourcing

Biodynamic vegetable garden in Wassenaar supplies herbs, vegetables, and rare varieties; chef harvests two to three times daily.

Named grower Arie Voorham (vegetable garden) and beekeeper Jan ter Schegget (honey); fish from Scheveningen Seafood Auction; meat identified by breed only.

Visit & practical info
Address, price, and more
Address
Laan van Roos en Doorn 51a, 2514 BC Den Haag, The Hague, Netherlands
Open in Google Maps ↗
Price
€€€€
Format
36 seats, set menus four to seven courses, reservation required
Hours
MondayClosed
Tuesday12:00–14:00, 18:30–22:00
Wednesday12:00–14:00, 18:30–22:00
Thursday12:00–14:00, 18:30–22:00
Friday12:00–14:00, 18:30–22:00
Saturday18:30–22:00
SundayClosed
Style
Fine dining
Good to know
Bar
Web
restaurantcallas.nl
Reviewed by My Treats
Last reviewed 13 Apr 2026
Reserve
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How we score
The My Treats impact scale

Every restaurant is assessed against SEERO, our six-dimension sustainability framework — covering sourcing, seasonality, waste, animal products, social impact, and plant-forward cooking. Each finding is weighted by how strongly it is corroborated. The combined result is translated into a planet rating from 1 to 5.

The five levels

SEERO is an acronym for Starting, Engaged, Endorsed, Recognised, Outstanding:

Starting First verified signals of sustainable practice.
Engaged Credible practice across two dimensions.
Endorsed Meaningful practice across three or more dimensions.
This place
Recognised Strong practice across four or more dimensions, with independent corroboration.
Outstanding Top-tier practice, confirmed by recognised third-party audit.

How a level is reached. Each level needs two things together: a minimum number of dimensions covered, and a minimum overall strength of evidence across them. A dimension only counts once its evidence is specific and substantiated — a passing mention doesn't qualify. Meeting only one of the two keeps a restaurant a level lower.

Ratings of four or five planets require human validation and, at the top tier, an external audit. Scores are based on publicly available evidence and restaurant submissions at the time of assessment.

Full methodology→
Impact dimension
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How this dimension works
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How evidence is weighted
Self-declared Stated by the restaurant on its website, menu or in a submission. Plausible, but not yet independently corroborated.
Researched Found through independent research; one credible third-party source backs the claim.
Vouched Corroborated across more than one independent source. Some gaps may remain.
Audited Fully corroborated across independent sources or by a recognised third-party certification.
What the sourcing checkmarks mean
✓ Full check — independently verified: corroborated across more than one source, or audited / third-party certified (vouched or audited).
✓ Light check — self-declared or from a single source. Not yet independently verified.
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