Tartiflette

Tartiflette by Les Légendaires has 95 kcal per 100 g. One serving (400 g) is about 380 kcal.

Tartiflette contains 3.3 g of protein per 100 g — about 13.2 g per 400 g serving.

Yes — only 0.8 g of sugar per 100 g. Most of its 9.7 g of carbs come from starch and fiber rather than sugar.

Nutri-Score weighs negatives (calories, sugar, saturated fat, sodium) against positives (fiber, protein) per 100 g. It collects almost no negative points (low sugar, saturated fat and sodium). Overall that places it in band B.

About 105 g of Tartiflette equals 100 kcal. It is a relatively low energy-density food, so portions can be generous.

Per 100 g it has 0.8 g sugar and 4.4 g fat (2.2 g saturated). Fat provides 44% of its calories, so portion size matters most here.