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Chaga Food Identity independently reviewed
Food Identity How restaurants source, cook and care. Independently reviewed

Chaga

A fine dining counter overlooking Brussels Park, where Kevin Lejeune cooks over a Japanese robata grill with produce from named Belgian growers and runs a full vegetarian tasting menu alongside the omnivore one.

Allergies Not published, ask the kitchen ahead
Food Identity How restaurants source, cook and care. Independently reviewed

Chaga

A fine dining counter overlooking Brussels Park, where Kevin Lejeune cooks over a Japanese robata grill with produce from named Belgian growers and runs a full vegetarian tasting menu alongside the omnivore one.

The essentials, at a glance

Allergies Not published, ask the kitchen ahead

Documented practices
Independently
reviewed
Local sourcing
Seasonal cooking
Plant-forward menu

Documented practices

Local sourcing Named Belgian growers for vegetables, fish from Brittany
Seasonal cooking Menu rebuilt seasonally across spring, October and December
Plant-forward menu Parallel vegetarian tasting menu, five or seven courses

Style
Fine dining
Cuisine
French
Good to know
Bar
Wheelchair accessible
Recognised by
We're Smart Green Guide
Recognised by
We're Smart Green Guide

The delicious details

Chaga sits on the top floor of the Faubourg 21 hotel, with windows over Brussels Park. Guests are seated around a counter of enamelled lava stone facing an open kitchen, where a Japanese robata grill sits at the centre and almost every dish carries some trace of its charcoal.

Service is a single evening sitting, Tuesday to Saturday, as a five or seven course menu. Vegetables are the subject rather than the accompaniment in much of the cooking, and a vegetarian menu of the same length runs alongside the omnivore one, built as its own sequence rather than as substitutions.

Produce comes from named Belgian growers, among them the biodynamic asparagus of Stephane Longlune in Wallonia and the permaculture vegetables and herbs of Le Monde des Mille Couleurs near Ypres.

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

A five or seven course tasting menu runs in two parallel versions: omnivore and vegetarian, each the full length. Vegetables are the subject of the cooking rather than the accompaniment. Dishes are named for their ingredients, scallops with butternut squash confit, Breton turbot with whelks, royal pigeon on the bone, winter vegetable millefeuille with kale confit, roasted sweet onion with black truffle.

The kitchen works to a five or seven course menu in two parallel versions, omnivore and vegetarian, each running the full length and priced separately.

Dishes are named for their ingredients: scallops marinated in plankton with oven roasted butternut squash confit, barbecued Breton turbot with whelks and creamy celeriac, royal pigeon cooked on the bone with a terrine of its legs. Vegetables carry several courses on both menus, among them a winter vegetable millefeuille, kale confit with vegetable juice and verjuice sauce, and roasted sweet onion with black truffle and aged Parmesan.

Preparation is done in house, from the fermentations and infusions behind the non alcoholic pairing to the whole birds broken down across a single course.

Cuisine

French

Dietary options

Vegetarian options
Impact score
How this restaurant rates
2 - Engaged

Vegetables, herbs and edible flowers are bought from Le Monde des Mille Couleurs at Dikkebus in West Flanders, the permaculture and wild farming holding of Dries Delanote, and asparagus from Stephane Longlune at Jurbise in Wallonia, who grows to Demeter certified biodynamic standards. Fish is delivered direct by two suppliers in Normandy and Brittany, and the kitchen has cooked Brussels grown mushrooms.

The menu is rebuilt as the seasons turn, from white asparagus with clams in spring to a winter vegetable millefeuille, kale confit, celeriac and clementine in December.

Chaga is listed in the We're Smart Green Guide, the Belgian guide to vegetable led cooking, which describes its seasonal plant menu.

The impact dimensions

Local & direct sourcing✓

Seasonal cooking✓

Sustainable animal products✓

Plant-forward menu✓

Vegetables from named Belgian growers including biodynamic asparagus and permaculture suppliers; fish from Normandy and Brittany, meat from Correze.

Independent coverage of the opening names several of the kitchen's suppliers: Le Monde des Mille Couleurs for vegetables at Dikkebus in West Flanders, a permaculture and wild farming holding of Dries Delanote; asparagus from Stephane Longlune at Jurbise in Wallonia, Demeter certified biodynamic; Brussels grown mushrooms in the vegetarian ravioli. Two fish suppliers in Normandy and Brittany deliver direct to the kitchen.

Fish and meat sourcing sits outside Belgium. Suckling veal comes from Correze in France, and the two direct fish relationships are at distance, so the dimension rests on the strength of the vegetable sourcing relationships.

Strongest sourcelalibre.be ↗

Menu rebuilt seasonally with documented spring, October and December versions; no dish repeats across seasons.

The restaurant states on its own site that the menu evolves faithfully to the seasons and the chef's inspiration. Three distinct menu versions are documented across 2025: spring dishes including white asparagus in several textures with clams, tarragon oil and milk vinaigrette, and langoustine in two preparations. The October menu is separate, and the December menu carries winter vegetable millefeuille, butternut squash confit, kale confit, creamy celeriac, Swiss chard, leek, smoked wild mushrooms, black truffle and clementine sorbet. No dish repeats between spring and December records.

The supply relationships reinforce seasonality: biodynamic asparagus is a strictly seasonal crop, and Le Monde des Mille Couleurs grows to a permaculture cycle. Seasonality is communicated as a guiding principle and most dishes change with the season, meeting the level-4 threshold.

Strongest sourceWe're Smart Green Guide ↗

Breton turbot and suckling veal from Correze named; no welfare standards or certifications documented.

The menu carries scallops, turbot, whelks, squid, blue lobster, veal and pigeon. Independent coverage of the opening records two fish suppliers in Normandy and Brittany delivering direct to the kitchen, and Breton turbot is named on the restaurant's own menu. Suckling veal from Correze is documented in the Michelin Guide listing.

No welfare standard, fishing method, breed or certification attaches to the fish or meat. Oscietra caviar and blue lobster are high-impact commodities carried without a sustainability qualification, which holds the dimension at level 2.

Strongest sourcemichelin.com ↗

Parallel vegetarian tasting menu of equal length, five or seven courses, priced separately; structured plant presence across both omnivore and vegetarian versions.

The kitchen runs two parallel tasting menus of equal length, omnivore and vegetarian, at five and seven courses, with the vegetarian version priced separately. The vegetarian menu is built as its own sequence rather than as omnivore dishes with the meat taken out.

On the a la carte, two of three starters and one of three mains are vegetable led: kale confit with vegetable juice, roasted sweet onion with truffle and Parmesan, and roasted sweet corn puree with wild mushrooms. The omnivore menu opens on a winter vegetable millefeuille, and vegetables carry structural weight inside the animal courses as butternut squash, celeriac, Swiss chard and leek. Vegetables are a structural part of the menu and the vegetarian offer is extensive.

Strongest sourceWe're Smart Green Guide ↗

Sourcing signals

✓
Certified organic ingredients
✓
Direct named-farm sourcing

Stephane Longlune at Jurbise is Demeter certified biodynamic for asparagus. No certification located for Le Monde des Mille Couleurs (permaculture and wild farming without a named certifier).

Le Monde des Mille Couleurs (Dries Delanote, Dikkebus, West Flanders) and Stephane Longlune (Jurbise, Wallonia) are named. Fish from two suppliers in Normandy and Brittany deliver direct to the kitchen.

Visit & practical info
Address, price, and more
Address
Avenue Marnix 21, 1000 Brussels, Brussels, Belgium
Open in Google Maps ↗
Price
€€€€
Format
Single evening sitting Tuesday to Saturday, about thirty seats, reserve required
Hours
MondayClosed
Tuesday19:00–23:00
Wednesday19:00–23:00
Thursday19:00–23:00
Friday19:00–23:00
Saturday19:00–23:00
SundayClosed
Style
Fine dining
Good to know
Bar
Wheelchair accessible
Web
chagarestaurant.com
Reviewed by My Treats
Last reviewed 07 Oct 2026
Reserve To website
Link copied
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 an impact score 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.
This place
Endorsed Meaningful practice across three or more dimensions.
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.

Scores of four or five 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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