It’s a FODMAP free fishy friday

fish fridayDo you eat fish on Friday? Do you know where this tradition came from?

I think one of the most comforting foods during dank winter days is fish pie. It is warming, comforting and can be a really healthy option too. Great to come home too after work when you need something tasty and filling after a full week at work a great start to the weekend. Now our usual fare on Friday is pilchards on toast – but I will bring you this delight some other time.



300g mixed fish, this can be purchased from supermarkets already prepared, use a white fish, a smoked fish and salmon.

2/3 pint of lactose free milk

1 tablespoon of cornflour

1 1/2 teaspoons of mustard

Small handful of flat leaved parsley


2cm piece of freshly grated parmesan

1/3 small Butternut Squash, 1 tablespoon of garlic infused oil, 1/2 lemon

600g of potato

1 tablespoon of margarine

3 tablespoons of lactose free milk


Chop the squash, drizzle with oil and lemon and roast in the oven till softDSCF0956mod

Boil the potato

Mash the squash and potato with margarine and 3 tablespoons of milk add a small amount of salt

Add milk to a pan with mustard, parsley and mix cornflour with a little milk and add this to the pan – cook till thickened.

Add fish to a dish and pour over sauce till the fish is covered, keep remaining sauce to serve with the dish later.

Spoon on the mash, level with a fork and then sprinkle on the cheese.

Place the dish in the centre of an oven at gas mark 6, 250ºC for 25 minutes.

Serve with the warmed sauce.


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I am a state registered dietitian. My speciality is dietary treatment of gut disorders such as irritable bowel syndrome, crohns disease, ulcerative colitis, coeliac disease, lactose & fructose malabsorption and multiple food intolerances. I have had lots of experience in other areas of dietetics and I wished to start this blog to spread the word about evidence based dietary treatments and dispel much of the quackery that is common with these diseases. All information on this site is of a general nature and is based on UK based treatments and guidelines. Please see your healthcare practitioner should you need more country specific information.

7 thoughts on “It’s a FODMAP free fishy friday

    1. Also changed the recipe slightly as it might have too much butternut squash in it. Also if you have a problem with resistant starches freezing the potato might be a problem – although this is not the case for everyone. Hope this helps

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