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Tuesday, 25 November 2025

White Bean and Fish Gratin


White Bean and Fish Gratin
this easy fish gratin uses frozen fish and vegetables.
Each serving provides: 17.5g protein, 18.6g carbohydrate (of which 5.9g sugars),
 7.9g fat (of which 1.7g saturates), 8.5g fibre and 0.74g salt.

Ingredients
Serves Six - adjust menu to suit
2 tbsp olive oil, plus extra for drizzling
350g/12oz leek, roughly sliced
300g/10½oz celeriac, cut into 1cm/½in cubes
400g tin white beans (butter beans), drained and rinsed
1 vegetable stock cube
3 tbsp dried mixed herbs
1 tbsp fennel seeds (optional)
½ tbsp cornflour (or plain flour)
400g/14oz frozen mixed vegetables
300g/10½oz frozen white fish (thawed), cut into thick chunks
50g/1¾oz day-old bread, crackers or mixed nuts, roughly blended into crumbs
salt and freshly ground black pepper

Method
1. Heat the oil in a large casserole over a medium heat and add the leek and celeriac. Season with salt and pepper, put the lid on and cook for 7–8 minutes until softened.
2. Meanwhile, place half of the beans in a small blender with 300ml/10fl oz hot water.
3. Add the vegetable stock cube and blitz. The mixture should be fairly loose. Add the mixed herbs, fennel seeds (if using) and blended bean mixture to the leek mixture and bring to a gentle simmer. Stir in the cornflour to thicken the mixture.
4. Add the mixed vegetables, fish chunks and remaining beans and cover with a lid for another 5–8 minutes to cook through. At this point, preheat a grill to medium–high. Remove the lid of the casserole and scatter with the crumbs. Drizzle with olive oil, sprinkle with some salt and pop under the grill for 2–3 minutes until golden and bubbling. Remove from the heat and leave to stand for a few minutes before serving.

Recipe tips
You can swap out some of these ingredients if preferred. For celeriac, you can also use parsnip, sweet potato or turnip. For white fish, use prawns, tuna or more white beans to make it vegetarian. Instead of frozen mixed vegetables, use broad beans, peas or frozen green beans. 
Note: Any swaps will not necessarily provide the nutritional detail as shown below image.
From an idea seen here

Alternative Recipe Suggestions can be seen on these two posts:
Celeriac Boulangère : French Inspired : Vegan/Vegetarian Dish : See it here
Gratins : Six Lower Carb Choices : See it here


~ enjoy your day ~

Dear reader, you will find a variety of articles and recipe ideas within this blog, and it is important to note, not all may be suitable for you. If you may have any food allergies, or underlying health issues these must always be taken into account. If you are a diabetic (more about this here) and not sure how certain foods may affect your blood sugars, test is best, i.e. use a reliable meter. If you have any concerns about your health it is always advisable to consult your Doctor or health care team.

All the best Jan

35 comments:

Hena Tayeb said...

Not a big fish fan but thanks for sharing.

Linda's Relaxing Lair said...

Dear Jan, not sure about the white bean, but this casserole looks amazing!

J.P. Alexander said...

Gracias por la receta. Te mando un beso.

Anonymous said...

That's a little different.
May try it, I have some white fish in the freezer.

Tina

gluten Free A_Z Blog said...

Jan, this is such an interesting and unique combination. I don't eat fish but I do eat beans.

Chatty Crone said...

Sure wish I liked fish better than I do.

Kay said...

I wish you lived next door to me here in Hawaii. I know you could keep me healthy.

Angie's Recipes said...

The casserole looks warming and tasty!

Iris Flavia said...

Hmmmm. Despite I do not like fish, this sounds "acceptable"! My Mom made fish patties - soooo good, sadly I do not have the recipe. I will try this soon (I hope... fish is really... difficult for me - I blame my Dad, it´s in the genes).

Margaret D said...

That's a another nice dish, Jan.

chica said...

Interessante e bem inusitada essa combinação do feijão branco com peixe. Nunca provei! Me pareceu bom oprato! beijos, chica

Victor S E Moubarak said...

I'd prefer it without the beans.
God bless.

Tom said...

...something to try, thanks!

jabblog said...

I'm quite conservative in how I cook fish. I must try this!

Crafty Green Poet said...

That looks delicious, I know I always describe myself as a veggie, but really I'm a pescatarian and i do like a nice fish dish.

Martha said...

This is a very unique dish!

MELODY JACOB said...

I like that it’s flexible with ingredients and still full of protein. Perfect for a simple, wholesome dinner.

Elkes Lebensglück said...

I've never done that with fish before. I'll have to try it sometime!
Best regards, Elke

Debbie said...

this looks so good, something i would really enjoy!! i really love one pot meals/casseroles. i adore that festive picture!!!

DVArtist said...

I could never get Mr. M. to eat this. But it is an interesting recipe.

♥ Łucja-Maria ♥ said...

Dear Jan!
Another delicious meal. I love fish and beans.
Wishing you beautiful November days.

Shari Burke said...

What a great looking recipe! Thank you! I will try it.

Ananka said...

Sounds alright, though I'd leave out the fish! :-D

Jenn Jilks said...

You have so many good ideas!

Authors with Advice said...

Awesome recipe. Happy Thanksgiving!

Marco Luijken said...

Hello Jan,
That meal looks great.
Fantastic. And what a good pictures.

Many greetings,
Marco

Lowcarb team member said...

GOOGLE TRANSLATE

J.P. Alexander
Gracias por la receta. Te mando un beso

Thanks for the recipe. Sending you a kiss.

chica
Interessante e bem inusitada essa combinação do feijão branco com peixe. Nunca provei! Me pareceu bom oprato! beijos, chica

Interesting and quite unusual, this combination of white beans and fish. I've never tried it! It looks like a good dish! Kisses, Chica

Joyful in His Presence said...

Another delicious recipe to try. Thank you, Jan.

Granny Marigold said...

I'm not one who likes fish so I'll skip this one.

roentare said...

This gratin sounds hearty and versatile. A comforting way to combine protein, vegetables, and creamy beans with a golden, crunchy topping.

HappyK said...

Sounds like another good one.

Conniecrafter said...

I would have to replace the fish with something else :)

The Happy Whisk said...

The white beans and fish is a nice idea. I never thought of those two together. Cool beans. Thanks.

Jules said...

That looks so good. Xx

Teresa said...

Otra deliciosa receta. Muchos besos.