Le Thalassa - Boulogne-sur-Mer, 20 Bd Sainte-Beuve

Boulevard Sainte Beuve 20, 62200 Boulogne-sur-Mer

Closed now · opens 12:00

Frenchseafood restaurant€€€€

Calories and carbohydrates are estimates by an AI model based on this menu, made on 12 September 2026, for a typical portion. They are not medical advice and do not replace what the kitchen can tell you. "Diabetes-friendly" means: modest carbohydrates for the course, little sugar and no fast-absorbing base such as fries, white bread or white rice.

Hot Appetizers

Gratinated Mussels

7.90

Cassolette de moules gratinées

estimate≈ 280 kcal12 g carbsdiabetes-friendly

Fish Soup

6.90

Soupe de poissons

estimate≈ 150 kcal10 g carbsdiabetes-friendlybalanced 69

Gratinated Coquilles St Jacques

9.90

Coquilles St Jacques gratinées

estimate≈ 320 kcal14 g carbsdiabetes-friendly

Escargots

7.90

estimate≈ 220 kcal4 g carbsdiabetes-friendly

Escargots

13.90

estimate≈ 350 kcal6 g carbsdiabetes-friendlybalanced 67

Grilled Shrimp

8.90

Crevettes grillées

estimate≈ 180 kcal5 g carbsdiabetes-friendlybalanced 79

Calamari Fritters

6.90

Beignets de calamars

estimate≈ 310 kcal22 g carbs

Gambas flambéed with Calvados

13.90

Gambas flambées au calvados

estimate≈ 240 kcal7 g carbsdiabetes-friendlybalanced 67

Gizzard Salad with balsamic vinegar

6.90

Salade gésiers au vinagre balsamique

estimate≈ 260 kcal8 g carbsdiabetes-friendlybalanced 66

Crispy Goat Cheese with honey & sesamevegetarian

7.90

Croustillant de chèvre au miel & sésame

estimate≈ 340 kcal18 g carbs

Cold Appetizers

Fish Terrine

6.90

Terrine de poissons

estimate≈ 190 kcal8 g carbsdiabetes-friendlybalanced 67

Shrimp Cocktail

8.90

Cocktail de crevettes

estimate≈ 210 kcal12 g carbsdiabetes-friendlybalanced 68

Smoked Salmon with toast

11.90

Saumon fumé et ses toasts

estimate≈ 310 kcal24 g carbs

Herring Fillet & warm potatoes

6.90

Filet de hareng & pommes de terre tiède

estimate≈ 280 kcal22 g carbsdiabetes-friendlybalanced 71

Duck Foie Gras

12.90

Bloc de foie gras de canard

estimate≈ 420 kcal6 g carbsdiabetes-friendly

Duo of Smoked Fish with toast

12.90

Duo de poissons fumés et ses toasts

estimate≈ 340 kcal26 g carbs

Crudités Platevegan, vegetarian

7.90

Assiette de crudités

estimate≈ 120 kcal14 g carbsdiabetes-friendlybalanced 72

Oysters Fines de Claire n°3

10.90

Huîtres fines de claire n°3

estimate≈ 80 kcal4 g carbsdiabetes-friendlybalanced 75

Oysters Fines de Claire n°3

15.90

Huîtres fines de claire n°3

estimate≈ 130 kcal6 g carbsdiabetes-friendlybalanced 75

Oysters Fines de Claire n°3

18.90

Huîtres fines de claire n°3

estimate≈ 180 kcal8 g carbsdiabetes-friendlybalanced 73

Salads

Salade de la mer

13.90

Smoked salmon, tuna, shrimp, tomato

estimate≈ 320 kcal8 g carbsdiabetes-friendlybalanced 67

Salade de chèvre chaudvegetarian

11.90

estimate≈ 380 kcal12 g carbsdiabetes-friendlybalanced 69

Salade gourmande

14.90

Tomatoes, smoked salmon, mushrooms, scallops

estimate≈ 350 kcal9 g carbsdiabetes-friendlybalanced 67

Salade nordique

13.90

Smoked salmon, shrimp, herring

estimate≈ 310 kcal7 g carbsdiabetes-friendlybalanced 73

Vegetarian saladvegetarian

10.90

Salade végétarienne

estimate≈ 250 kcal15 g carbsdiabetes-friendlybalanced 70

Calamari alla romana

10.90

Calamars à la romaine

estimate≈ 420 kcal25 g carbsdiabetes-friendly

Fried Omelettes

Plain omelettevegetarian

7.90

Omelette nature

estimate≈ 350 kcal4 g carbsdiabetes-friendly

Cheese omelettevegetarian

8.90

Omelette fromage

estimate≈ 450 kcal6 g carbsdiabetes-friendlybalanced 71

Mushroom omelettevegetarian

8.90

Omelette champignons

estimate≈ 380 kcal8 g carbsdiabetes-friendly

Ham omelette

8.90

Omelette jambon

estimate≈ 420 kcal6 g carbsdiabetes-friendlybalanced 71

Mixed omelette

9.90

Omelette mixte — Two ingredients

estimate≈ 480 kcal10 g carbsdiabetes-friendlybalanced 71

Tagliatelles

Tagliatelle with two salmons

13.90

Tagliatelles aux deux saumons crème ciboulette — Cream and chives

estimate≈ 780 kcal65 g carbs

Tagliatelle Carbonara

10.90

Tagliatelles à la carbonara

estimate≈ 720 kcal60 g carbs

Tagliatelles du pìher

14.90

estimate≈ 750 kcal62 g carbs

Mussel Pot Specialties

Marinière

10.50

Onions, thyme, bay leaf, parsley, white wine, pepper

estimate≈ 320 kcal18 g carbsdiabetes-friendlybalanced 81

Espelette

11.90

Espelette pepper, onions, thyme, bay leaf, parsley, white wine, tomato velouté

estimate≈ 380 kcal22 g carbsdiabetes-friendlybalanced 85

À la crème

11.90

A la crème — Celery, onions, cream, white wine

estimate≈ 450 kcal15 g carbsdiabetes-friendlybalanced 74

À la provençale

12.90

A la provençale — Onions, bell peppers, tomatoes

estimate≈ 340 kcal20 g carbsdiabetes-friendlybalanced 85

À l'ancienne

12.90

A l'ancienne — Old-style mustard

estimate≈ 360 kcal16 g carbsdiabetes-friendlybalanced 75

Ardennaise

13.90

Bacon, onions, mushrooms, cream

estimate≈ 520 kcal18 g carbsdiabetes-friendlybalanced 74

Au roquefort

14.90

Onions, white wine, roquefort

estimate≈ 520 kcal12 g carbsdiabetes-friendlybalanced 74

Poulette

12.90

Onions, mushrooms, chive cream

estimate≈ 480 kcal14 g carbsdiabetes-friendlybalanced 74

Au Maroilles

14.90

Maroilles cheese

estimate≈ 550 kcal11 g carbsdiabetes-friendlybalanced 74

A l'ail

11.90

With garlic

estimate≈ 320 kcal10 g carbsdiabetes-friendlybalanced 75

Fresh Catch of the Day

Whelks mayonnaise

7.90

Assiette de bulots mayonnaise — Plate of whelks with mayonnaise

estimate≈ 350 kcal8 g carbsdiabetes-friendlybalanced 67

Grey and pink shrimps

10.90

Assiette de crevettes grises et roses — Plate of grey and pink shrimps

estimate≈ 220 kcal6 g carbsdiabetes-friendlybalanced 79

Crab

13.90

Crabe à décortiquer — Crab to be shelled

estimate≈ 180 kcal4 g carbsdiabetes-friendlybalanced 79

Cold American lobster

Homard américain froid mayonnaise — With mayonnaise

estimate≈ 420 kcal8 g carbsdiabetes-friendly

Seafood Platters

Petit bateau

22.90

1/2 brown crab, 4 langoustines, whelks, periwinkles, grey and pink shrimps

estimate≈ 650 kcal15 g carbsdiabetes-friendlybalanced 70

Bateau

37.90

6 oysters, 1/2 brown crab, 4 langoustines, whelks, periwinkles, gambas, grey and pink shrimps

estimate≈ 950 kcal22 g carbsdiabetes-friendly

Paquebot

90.00

2 Bateau platters + 1 lobster

estimate≈ 2200 kcal45 g carbsheavy 41

Meats

Grilled beef steak

9.90

Steak de boeuf grillé

estimate≈ 450 kcal0 g carbsdiabetes-friendlybalanced 71

Grilled entrecote

15.90

Entrecôte grillée

estimate≈ 580 kcal0 g carbsdiabetes-friendlybalanced 71

Rump steak

16.90

Pavé de rumsteck

estimate≈ 520 kcal0 g carbsdiabetes-friendlybalanced 71

Poultry escalope à la normande

11.90

Escalope de volaille à la normande

estimate≈ 410 kcal12 g carbsdiabetes-friendlybalanced 71

Sliced duck with citrus

16.90

Émincé de canard aux agrumes

estimate≈ 480 kcal15 g carbsdiabetes-friendlybalanced 74

Potjevleesh

12.90

estimate≈ 320 kcal6 g carbsdiabetes-friendlybalanced 67

Children's Menu

Children's menu

7.50

Menu enfant — Choice of: ground beef, ham, moules marinière, or chicken nuggets with fries + dessert

estimate≈ 850 kcal85 g carbs

Sea Menu

Menu de la mer

21.90

Starter (fish soup, grilled shrimps, mussel gratin, gourmet salad), Main (fish duo)

estimate≈ 950 kcal35 g carbsdiabetes-friendlybalanced 70

Menu at €15.90

Menu €15.90

15.90

Menu à 15,90€ — Starter (fish terrine, herring fillet, gizzard salad, 6 snails), Main (plaice meunière, steak frites)

estimate≈ 1100 kcal70 g carbs

Menu at €27.90

27.90

Menu à 27,90€ — Starter (honey goat cheese crisp, scallops, foie gras block, 12 snails), Main (entrecôte)

estimate≈ 1100 kcal45 g carbs

Ice Cream Sundaes

Equinoxe

6.00

Rum-raisins, vanilla

estimate≈ 280 kcal32 g carbs

Poire Belle Hélène

6.50

Pear, vanilla, chocolate sauce

estimate≈ 320 kcal42 g carbsheavy 44

Red fruits

6.50

Fruits rouges — Raspberry, blackcurrant, strawberry, red fruit coulis

estimate≈ 240 kcal35 g carbsheavy 35

Suspens

6.00

estimate≈ 260 kcal30 g carbs

Pêche Melba

6.50

Peach, vanilla

estimate≈ 280 kcal38 g carbsheavy 42

La vie en rose

7.00

Raspberry, blackcurrant, strawberry, fruit cream

estimate≈ 310 kcal36 g carbsheavy 44

Café liégeois

6.50

Coffee, vanilla

estimate≈ 340 kcal38 g carbsheavy 41

Chocolat liégeois

6.50

Chocolate, vanilla

estimate≈ 360 kcal40 g carbsheavy 35

Banana Split

6.50

Chocolate, vanilla, strawberry

estimate≈ 450 kcal55 g carbsheavy 40

Romance

6.50

Vanilla, strawberry

estimate≈ 260 kcal32 g carbs

Colonel

7.50

Lemon, vodka

estimate≈ 310 kcal30 g carbsheavy 42

Kir royal glacé

9.00

Blackcurrant, champagne

estimate≈ 330 kcal34 g carbsheavy 35

Irish coffee

8.50

Coffee, cane sugar, whipped cream, whisky

estimate≈ 380 kcal35 g carbsheavy 34

Desserts

Profiteroles

6.50

estimate≈ 420 kcal48 g carbsheavy 35

Crème brûlée

6.00

estimate≈ 350 kcal28 g carbsheavy 42

Apple tart

4.50

Tarte aux pommes

estimate≈ 310 kcal42 g carbs

Lemon tart

5.50

Tarte au citron

estimate≈ 380 kcal38 g carbsheavy 34

Fondant au chocolat

5.50

estimate≈ 410 kcal35 g carbsheavy 43

Mousse au chocolat

5.00

estimate≈ 320 kcal22 g carbs

Plate of 3 cheeses

6.00

Assiette de 3 fromages

estimate≈ 450 kcal12 g carbsdiabetes-friendly

Is this menu still right?

37veggie
scoreestimate

Limited vegetarian options

How well a vegetarian eats here, read from the menu. Not a review score.

You can choose a salade végétarienne or a croustillant de chèvre au miel. There are omelettes with cheese or mushrooms. Vegans can order an assiette de crudités.

7 vegetarian and 1 vegan dishes out of 81

86dia
scoreestimate

Fresh seafood and meats

How well someone with diabetes eats here, from the menu and estimated carbohydrates. Not medical advice.

This restaurant offers many protein-rich options with low carbohydrates. The selection of fish and meat is extensive.

51 diabetes-friendly · 81 dishes

Reviews

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Practical

Address: Boulevard Sainte Beuve 20, 62200 Boulogne-sur-Mer
Hours: Monclosed
Tue—
Wed—
Thu—
Fri—
Sat—
Sun12:00–22:00
Contact: +32321317606
Sources: Overture Maps Places (CDLA-Permissive 2.0), lethalassa.fr
Record: completeness 83 %, confidence 95 %

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