Quick fish gratin recipe

This simple and tasty fish gratin is so easy to make and really quick to prepare. It’s also great for a low-calorie diet. Each serving provides 446 kcal, 43g protein, 39.5g carbohydrates (of which 8g sugars), 12g fat (of which 4.5g saturates), 3.5g fibre and 1.5g salt.