Menssa is on Avenue de Tervueren in Woluwe-Saint-Pierre, in a neighbourhood that’s more embassy than restaurant district — residential, quiet, the kind of address that means you’re going specifically rather than stumbling in. Chef Christophe Hardiquest ran this address for years as Bon Bon, with two Michelin stars, before rebranding to Menssa with a sharpened focus on sustainable and organic cooking. It currently holds one star.
The rebrand wasn’t a step down in ambition. The concept at Menssa is about provenance and sustainability — producers, terroir, the relationship between the kitchen and the land — which in practice means the cooking is still technically precise and ingredient-led, just more explicit about where things come from. The room features a curved counter with a design tree bringing a natural element inside; the kitchen is visible, the format is chef-table adjacent, the experience is participatory in the way serious tasting menu restaurants tend to be.
My own experience here is from the Bon Bon era, before the rebrand, and it was excellent. The kind of meal that stays with you for years. I haven’t been back since the Menssa transition, which is a gap I should address.
What the cooking looks like now
The current Michelin description gives a good sense of what Hardiquest is doing: a mushroom creation with bitter coffee, smoked and marinated egg yolk, and a vegetal emulsion — precise, layered, technically considered. An Ardennes venison fillet with a game sauce and sweetbread tempura. These are not simple dishes but they’re not showing off for its own sake either. There’s a clear point of view.
The wine list, per Michelin, leans toward reasonably priced selections, which at this level is worth noting — tasting menus at €€€€ often come with wine pairings that double the bill, and the suggestion here is that the sommelier is working with you rather than at you.
The keto situation
Creative fine dining with a sustainable focus is, on balance, manageable for keto through the savoury courses. The format is the same logic that applies at Terborght — small, focused courses built around protein and technique rather than carbohydrate bulk.
The venison with game sauce is exactly the kind of course that requires no navigation at all. The mushroom and egg yolk dish likewise — coffee, egg, emulsion, no starch involved. The sweetbread tempura has a light coating by definition, but in tasting menu quantities this is a small element rather than a bowl of fried food.
Where creative tasting menus can surprise you is in the vegetable courses — a bio and terroir-focused kitchen will sometimes build a course entirely around a root vegetable or a grain preparation that lands solidly outside keto range. These exist and you’ll eat them, or you’ll quietly leave them, depending on where you are with strictness.
Dessert is dessert. A cheese course, if offered, is the better choice.
Worth knowing
Menssa is a destination restaurant and should be treated as one — advance reservation, occasion-appropriate, not a casual Tuesday decision. The loss of the second star from the Bon Bon era doesn’t change the quality of the cooking in any meaningful sense; one-star restaurants at the level Hardiquest operates at are in a different category from the general restaurant population.
If you’re eating keto and the question is whether to go: yes. Eat the menu. The Ardennes venison alone is worth the trip to Woluwe-Saint-Pierre.
Avenue de Tervueren 453, Woluwe-Saint-Pierre.