5 from 5 votes

BEST Fish Finger Sandwich in 15 minutes

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This easy fish finger sandwich is made with pre-made fish fingers and homemade tartar sauce, for a quick weeknight meal.
Prep time: 5 minutes
Cook Time: 15 minutes
Total Time: 20 minutes
£1.07
Makes: 4
mains
British

No time to make a fish sandwich from scratch?  Well now you don’t have to!  This delicious fish finger sandwich consists of flaky, crispy pre-made fish fingers, tangy homemade tartar sauce, and crunchy gherkin pickles.  All loaded up on thick, freshly cut bread slices.  And the best part…it is ready in less than 20 minutes, making it the perfect meal on a busy day.

That is why I absolutely love this recipe.  All the time consuming work is already done.  Someone else breaded and fried those fish sticks and then froze them just for us!  

2 fish finger sandwiches piled on top of each other with a bluey green background.

Why you’ll love this recipe

No breading – Don’t worry about breading your own fish for this fish finger sandwich recipe; it uses premade fish fingers.

No frying – There is absolutely no frying involved!  

Quick and Easy – Because there is no breading the fish or deep frying, these fish finger sandwiches are incredibly quick and easy to make with frozen fish fingers.

Crispy and Flavorful – You don’t lose any of the flavor or texture.  Frozen fish fingers are just as flavorful and crispy as if you made them yourself! 

Family Favorite – These fish finger sandwiches were a family favorite of mine growing up, and I think they will be for your family as well!

Satisfy your sandwich cravings with these other recipes: Easy Spicy Chicken Sandwich, The Best Turkey Sandwich in 10 minutes! and Banh Mi Inspired Sandwiches

Best Bread to Use

The best fish finger sandwich in my opinion is served between two freshly sliced, thick pieces of bread that have been lightly toasted.  The contrast of the soft bread and crispy fish fingers really makes this combination work.  

But I am here to tell you, the options for bread to use are vast.  Any restaurant you visit may make a posh fish finger sandwich on a baguette, bagel, burger bun, brioche, sourdough…again, the options are endless.

So why not try one of those yourself and see which one you like!

What do you put on a fish finger sandwich?

There are many ways to top a fish fingers sandwich.  Traditional sauces are ketchup, mayonnaise, tartar sauce, salad cream, and mustard.  But there are some folks out there that swear by a mayo/ketchup mix as the best sauce.  

In this recipe, we make our own mayonnaise/tartar sauce with capers to make this fish stick sandwich over the top on flavor!

And you don’t have to stop with the sauce!  For fish sandwich toppings you may want to try lettuce, tomato, cheese, egg, pickle, avocado, or bacon.  Honestly, I think I could do all of them and make it an ultimate fish finger sandwich!

Consider making these other delightful prawn dishes during the week; Prawn and Chorizo Pasta, The Best Garlic Prawns and Simple Thai Prawn Curry

Ingredients

Ingredients to amek a fish finger sandwich laid out on a plale blue background and labelled.

Fish Fingers – These fish sticks are made from mild, flaky cod with a golden, crispy breading that will leave your mouth watering.

Capers – The bright burst of flavor from these briney buds takes the flavor of this flavorsome sandwich to a whole new level.

Mayonnaise – The mayonnaise here gives the whole sandwich a nice silkiness and helps marry the flavors from the fish, capers, and gherkins.

See the recipe card for full information on all ingredients and quantities. 

Need inspiration for some tasty fish recipes? Try my ; Easy Salmon Fishcakes, Fish Burrito Bowl and Spicy Tuna with Crispy Rice

How to make fish finger sandwiches

Preheat you oven to 360°F (180°C)

  1. Start by placing the fish fingers in a baking dish/tray to cook in the oven (around 14 mins in my case) (Image 1).

2. Wash the lettuce and dry with a tea towel (Image 2).

2 step by step photos, the first with 4 fish fingers in white dish and the second with lettuce leaves in a tea towel.

3. Roughly chop the capers and add them to a mixing bowl with the mayonnaise and juice of ¼ to ½ a lemon, depending on preference (Image 3).

4. Stir to combine. If you love the briney/salty flavour of capers, add ½ tsp of the brine from the jar into the caper mayo (Image 4).

2 step by step photos, the first with finely chopped capers and a bowl of mayo on chopping a board and the second with these mixed together.

5. Toast your thick slices of white bread for 1-2 minutes, until lightly toasted (we only want a light toast here)! (Image 5).

6. Add a layer of caper mayo onto each slice of lightly roasted bread (Image 6).

2 step by step photos, the first with 2 slices of bread in a pan and the second with a piece of bread on a wooden board.

7. Then to the bottom piece, add a layer of lettuce, fish fingers, red onion, gherkins and a crack of black pepper (Image 7).

8. Add the top slice of bread and slice through the middle to serve (Image 8).

2 step by step photos, the first with 4 fish fingers on lettuce on bread  and the second with a piece of bread on a the top on a wooden board.

Variations/ Adaptations

If you don’t have fish fingers, don’t worry, a frozen fish fillet will work just as well.  You could also try cod fish that is not breaded or a whole different type of fish altogether.  Some great options for this fish sandwich are hake, pollock, or haddock.

Vegetarians and vegans can replace the cod fish sticks with vegan fish sticks.  And vegans can use vegan mayo.

Pair this yummy sandwich witha tasty side for an even tastier meal: The Crispiest Halloumi Fries, Simple Tricolore Salad and Airfryer Frozen Fries

Tips for the best result

  • I recommend eating this sandwich right away.  That way the fish sticks stay nice and crispy.
  • If you want to speed up the process, use the airfryer to cook the fish fingers in 10 minutes for quick results!
2 fish finger sandwiches piled on top of each other showing the lettuce, tzatziki and pickles with a bluey green background.

Leftover Storage and Reheat Instructions

The best tip I can give you with this sandwich is to eat it right away.  While you can store it in the refrigerator, it will not taste as good.  The texture of both the bread and the fish fingers will be compromised.

Will the bread get soggy in the refrigerator?
The bread may get soggy in the refrigerator if  you have already added the mayonnaise mixture.  I do not recommend storing any leftovers of this sandwich in the refrigerator.

Can you refreeze frozen fish sticks?
It is not recommended to refreeze anything that has already been cooked and frozen once.  This sandwich is not freezer friendly. 

FAQs

Should you butter the bread in a fish finger sandwich?

Buttering the bread on a fish sandwich is a great way to add moisture and flavor.  This type of sandwich is actually called a fish finger butty.

Can you make these sandwiches ahead?

I don’t recommend making these sandwiches ahead.  The fish fingers and the bread will not have the same consistency as when they are freshly made.

Are fish finger sandwiches made with cod?

Most fish finger sandwiches are made with cod, but that doesn’t mean you can’t try out different types of fish. Some good ones are pollock, haddock, and hake.


Is a fish finger sandwich made with ketchup or mayonnaise?

Ketchup and mayonnaise are both good on a fish finger sandwich and the people are pretty divided on which is better, so it is up to you which one you want to go with.  When in doubt, some people love a ketchup/mayonnaise mixture, known as fry sauce.

Can you add cheese to a fish stick sandwich?

You can absolutely add cheese to a fish stick sandwich.  Cheese makes everything better!

2 fish finger sandwiches with white thick sliced bread piled on top of each other with a bluey green background.

 

If you tried this Fish Finger Sandwich recipe, it would be mean so much to me if you could leave a review & a star rating to let me know how you found it! I love hearing about your experiences – it motivates me to keep creating more and more recipes for you guys 💛 Let’s get cooking! – Mimi x

BEST Fish Finger Sandwich

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5 from 5 votes
Prep Time: 5 minutes
Cook Time: 15 minutes
Total Time: 20 minutes
£1.07
mains
British
Servings: 4
This easy fish finger sandwich is made with pre-made fish fingers and homemade tartar sauce, for a quick weeknight meal.

Ingredients

  • 16 fish fingers (£1.60)
  • 8 little gem lettuce leaves (£0.89)
  • ½ red onion, thinly sliced (£0.15)
  • 1 tbsp capers (£2.20/10)=(£0.22)
  • 8 slices thick bread (£1.00)
  • Juice of ¼- ½ lemon (£0.30)
  • 100 g mini gherkins (£1.25/8)=(£0.15)

Cupboard Essentials

  • 6 tbsp mayonnaise

Method

Preheat you oven to 360°F (180°C)

  • Start by placing the fish fingers on a baking tray to cook in the oven (around 14 mins in my case).
  • Roughly chop the capers and add them to a mixing bowl with the mayonnaise and juice of ¼ to ½ a lemon, depending on preference. . Stir to combine. If you love the briney/salty flavour of capers, add ½ tsp of the brine from the jar into the caper mayo.
  • Toast your thick slices of white bread for 1-2 minutes, until lightly toasted (we only want a light toast here!
  • Add a layer of caper mayo onto each slice of lightly roasted bread, then to the bottom piece, add a layer of lettuce, fish fingers, red onion, gherkins and a crack of black pepper. Add the top slice of bread and slice through the middle to serve

Notes

  • Eat the sandwich right away, so that the fish sticks stay nice and crispy.
  • If you want to speed up the process, use the airfryer to cook the fish fingers in 10 minutes for quick results!

Nutrition

Servings: 4 servings
Fat: 27g
Calories: 623kcal
Carbohydrates: 69g
Protein: 23g

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