Cauliflower gratin with mornay sauce Vegetarian
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This simple cauliflower gratin with mornay sauce makes a very tasty side dish, or vegetarian main course.
Nutrition balance score
Nutrition per serving
Of which sugars
7.89 g
Of which saturated fats
4.74 g
Recipe cauliflower gratin with mornay sauce
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Recipe cauliflower gratin with mornay sauce allergens
This recipe contains the following allergens. Click on the allergen to search for alternative recipes.
Made by Véronique
Published at 2021-05-21, this recipe is for 4 persons and takes 40 minutes.
Founder of Ohmydish (since 2014), she prefers to spend all day in the kitchen. Once working in the hospitality industry as an independent chef, she loves helping you gain confidence in the kitchen. With her easy-to-follow recipes, handy tips, and cooking knowledge, you'll make the most delicious dishes yourself! The recipes are accessible to everyone, from beginners to advanced home cooks.
Updated at: 2025-09-27
Preparation – 15 minutes
First, make the mornay sauce. This cheese sauce can be replaced with a béchamel sauce.
Fill a large saucepan with water and a pinch of salt and bring to a boil. Meanwhile, break the cauliflower into florets; these do not have to be very small. Cook the cauliflower florets until al dente in the boiling water.
Preheat the oven to 180 degrees celsius. Toast the hazelnuts briefly in a dry pan; do not add oil or butter.

Finishing the cauliflower gratin with mornay sauce – 25 minutes
Drain the cauliflower florets and place them in a baking dish. Spread the mornay sauce over them and sprinkle with a layer of grated cheese.
Bake the cauliflower gratin for around 20 minutes, until golden brown. The exact baking time depends on your oven. Roughly chop the hazelnuts and sprinkle them over the oven dish. Garnish with fresh parsley, if desired. Enjoy your meal!
What is a mornay sauce?
A mornay sauce is a kind of béchamel sauce, which is made more flavoursome by the addition of cheese and egg yolks. It’s delicious cheese sauce which can add flavour to a variety of dishes.
Can I replace hazelnuts with something else?
You can replace the hazelnuts with almonds, peanuts, cashew nuts, or even crispy bacon for a non-vegetarian version.
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Per 1 serving / piece:
Of which sugars
7.89 g
Of which saturated fats
4.74 g
| Amount | Ingredient | Allergens | Kcal | Carbs | Carbs of which sugars | Fat | Fat of which saturated | Protein | Fibers | Sodium | Iron | Calcium | Magnesium | Potassium | Phosphorus | Copper | Zinc | Iodine | Selenium | Vitamin C | Vitamin D | Vitamin A | Vitamin B1 | Vitamin B2 | Vitamin B6 | Vitamin B12 | Vitamin B11 | Vitamin E | Vitamin K | Vitamin K1 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.25 | large | cauliflower | 60.00 | 7.50 g | 6.25 g | - | - | 5.00 g | 5.50 g | 25.00 mg | 1.25 mg | 37.50 mg | 25.00 mg | 625.00 mg | 75.00 mg | 0.08 mg | 1.00 mg | - | - | 200.00 mg | - | - | 0.13 mg | 0.15 mg | 0.50 mg | - | 112.50 µg | - | - | - | |
| salt | - | - | - | - | - | - | - | 600.00 mg | - | 0.15 mg | 4.35 mg | 0.08 mg | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||
| 0.25 | large handful | of finely grated grana padano | milk, egg | 29.25 | 0.04 g | - | 2.10 g | 1.43 g | 2.40 g | - | 112.50 mg | 0.04 mg | 90.00 mg | 2.25 mg | 11.25 mg | 75.00 mg | - | 0.30 mg | - | 1.50 µg | - | - | 30.00 mg | - | 0.03 mg | - | 0.11 µg | 1.35 µg | 0.04 mg | 0.19 µg | - |
| 0.25 | batch of | mornay sauce | milk | 65.00 | 4.00 g | 1.00 g | 5.00 g | 3.00 g | 1.50 g | 0.25 g | 250.00 mg | 0.25 mg | 100.00 mg | 5.00 mg | 75.00 mg | 50.00 mg | 0.03 mg | 0.25 mg | 2.50 µg | 1.00 µg | 0.50 mg | - | 150.00 mg | 0.03 mg | 0.10 mg | 0.05 mg | 0.25 µg | 5.00 µg | 0.50 mg | 5.00 µg | - |
| 0.25 | small handful | of hazelnuts | nuts | 50.03 | 0.79 g | 0.64 g | 4.69 g | 0.32 g | 1.07 g | 0.56 g | 0.15 mg | 0.29 mg | 16.50 mg | 11.25 mg | 48.75 mg | 22.50 mg | 0.10 mg | 0.14 mg | - | - | 0.22 mg | - | - | 0.03 mg | 0.02 mg | 0.03 mg | - | 3.75 µg | - | - | - |
| 204.28 | 12.33 g | 7.89 g | 11.79 g | 4.74 g | 9.97 g | 6.31 g | 987.65 mg | 1.83 mg | 244.15 mg | 47.85 mg | 760.08 mg | 222.50 mg | 0.20 mg | 1.69 mg | 2.50 µg | 2.50 µg | 200.73 mg | - | 180.00 mg | 0.18 mg | 0.30 mg | 0.59 mg | 0.36 µg | 122.60 µg | 0.54 mg | 5.19 µg | - | ||||
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