Leek and Celeriac Gratin 5-2 Diet Food

5-2 Diet Leek and Celeriac Gratin:

Supper last night was not quite what I intended!  I’ started with great plans to make the gratin and serve half of it with a salad and a quinoa burger.  But, then my day seemed to vanish!  In the end as is often the case toward the end of a 5-2 diet day before supper, I was very hungry and since I’d already started to prepare the gratin,  I gave up, made the gratin and ate the lot.

Very nice it was too.  But, in all honesty, if I was going to make it as a main dish deliberately, I think a little ham would have really improved the mixture and still provided a good low calorie meal (one slice of parma ham, cut into tiny bits and scattered through the dish would add about 30 calories!  Of course the end result is something very suitable as a vegetarian supper.


5-2 diet leek and celeriac gratin


So, leek and celeriac gratin is a good 5:2 diet supper, or a side dish if you eat half this portion.  I had the lot, which was just under 300 calories for a very generous portion.

Low Calorie Leek and Celeriac Gratin for 5-2 diet

Serves 1-2
Prep time 5 minutes
Cook time 50 minutes
Total time 55 minutes
Allergy Milk
Dietary Vegetarian
Meal type Main Dish, Side Dish
Misc Pre-preparable, Serve Hot


  • 300g Celeriac Root (Peeled and finely sliced)
  • 1/2 Medium Leek (cleaned and sliced finely)
  • 1 teaspoon Dijonnaise mustard
  • 100ml semi skimmed milk
  • 50ml low fat creme fraiche
  • 20g parmesan cheese
  • 2-3 shots 1-cal oil


Step 1 Spray an oven proof casserole with 1cal
Step 2 Put a layer of celeriac on the bottom of the casserole, then leeks, then celeriac then leeks until everything is used. Season each layer with a little salt and pepper.
Step 3 Mix together the creme fraiche, milk and dijon mustard and pour over the vegetables
Step 4 Top everything with finely grated parmesan and put in the oven at 150c for 50 minutes.

Next time I make this I will be adding ham and caraway seeds.

But last night it was a great 5-2 vegetarian fast day meal and next time I’ll be making the quinoa burger too.  Meanwhile, in terms of weightloss I am still gradually losing weight, despite the restaurant reviews and baking efforts!

5-2 fast day diet celeriac and leek gratin

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  1. says

    I don’t know where you find the recipes and how you manage to do this.. because I have heard of celeraic but never eaten it– but this looks amazing.

    • says

      I do lose weight, although not incredibly quickly. It seems to be about 1kg a month. I’m somewhere in between 63kg and 64kg at the moment, a huge improvement from the 72kg I was last year!

      I’m sure it would be faster if I didn’t eat out quite so much and I have to admit I am trying to cut down the number of reviews I do!!!

  2. Tracy Nixon says

    If you had used a Slica to finely slice the celery and leeks and grate the cheese it would have been faster lol! Love the recipe though!

  3. Ellie S says

    This is a great recipe – it would have been really handy to have a Slica for slicing the veg & grating the Parmesan x

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