Filet O Fish Sliders

Crispy golden Filet O Fish sliders with melted cheese and creamy tartar sauce on toasted buns Save to Pinterest
Crispy golden Filet O Fish sliders with melted cheese and creamy tartar sauce on toasted buns | yummyhauskitchen.com

These mini fish sandwiches capture everything beloved about the classic fast-food favorite. White cod or haddock fillets get coated in a seasoned three-step breading of flour, egg, and crispy panko-cornmeal blend, then fried or baked until deeply golden. Each slider gets assembled on a toasted bun with melted cheddar, crisp lettuce, and a generous swipe of homemade tartar sauce spiked with pickles, capers, and fresh herbs. Ready in just over half an hour, these sliders deliver restaurant-quality crunch and flavor perfect for casual gatherings, game day spreads, or family dinners where everyone can grab their own handheld portion.

My roommate used to keep a frozen box of these fish patties in our college apartment, and on late Friday nights when we were too tired to cook anything real, they would hit the spot in that guilty pleasure way that only happens after midnight. Last winter I decided to recreate that memory from scratch, and the first batch disappeared before I could even sit down. Now they are my go-to when I want something nostalgic but actually homemade.

I made these for a Super Bowl party last year and people kept drifting into the kitchen, grabbing sliders as they came out of the pan. The best moment was watching my friend who swears she hates fast food fish close her eyes and take three in a row. Sometimes the simplest food creates the happiest memories.

Ingredients

  • White fish fillets: Cod and haddock are my go to because they hold up beautifully during frying and stay tender inside that crispy coating
  • Panko breadcrumbs: These create an airy crunch that regular breadcrumbs cannot match, and mixing in cornmeal takes it to another level
  • Capers: Do not skip these in the tartar sauce, they add little bursts of briny brightness that cut through the fried fish
  • Slider buns: Look for the smallest soft buns you can find, the ratio of bun to filling is what makes these addictive
  • Mild cheddar: Processed cheese melts better but a good sharp cheddar adds more flavor if you want to upgrade

Instructions

Get your station ready:
Set up three shallow bowls in a line, one with flour, one with beaten eggs, and one with panko mixed with cornmeal. This assembly line approach makes the coating process so much smoother.
Season and prep the fish:
Cut your fish into 8 even slider sized pieces and pat them completely dry with paper towels, then season generously with salt and pepper on both sides.
Coat each piece:
Dredge fish in flour shaking off excess, dip into egg letting the extra drip off, then press firmly into the panko mixture until thoroughly coated. Place on a wire rack while you finish the rest.
Fry to golden perfection:
Heat about half an inch of oil in a large skillet over medium high heat and fry fish in batches for 2 to 3 minutes per side until deep golden brown and cooked through. Transfer to a wire rack to keep the crunch.
Make the sauce while fish rests:
Whisk together mayonnaise, chopped pickles, capers, lemon juice, Dijon mustard, and fresh parsley. Let it chill for at least 10 minutes so the flavors meld together.
Assemble and serve:
Lightly toast your slider buns, place a crispy fish fillet on the bottom half, add cheese so it melts into the hot fish, top with lettuce, a generous spoonful of tartar sauce, and crown with the bun top.
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My daughter now requests these for her birthday dinner every year instead of cake. We set up a toppings bar with different cheeses and pickles, and everyone builds their own perfect slider. Food becomes tradition when you share it with people you love.

Baking Instead of Frying

You can absolutely bake these at 200°C (400°F) for 10 to 12 minutes, flipping halfway through. They will not get quite as crunchy as the fried version but still satisfy that craving. I like to spray them with a little olive oil before baking to help the breading brown.

Making Ahead

The tartar sauce actually gets better after a day in the fridge, so feel free to make it up to 24 hours ahead. You can also coat the fish pieces and keep them refrigerated for a few hours before frying, just do not stack them or the coating will stick together.

Serving Ideas

These sliders are perfect for parties because people can grab them easily and keep mingling. I love serving them with crispy oven fries or a simple green salad to balance out the richness.

  • Set out extra lemon wedges for squeezing over the fish
  • Keep the sliders warm in a 150°C (300°F) oven if making a big batch
  • Offer spicy mayo as an alternative sauce for heat lovers
Mini Filet O Fish sliders topped with crunchy lettuce and homemade tartar sauce ready to serve Save to Pinterest
Mini Filet O Fish sliders topped with crunchy lettuce and homemade tartar sauce ready to serve | yummyhauskitchen.com

These sliders always remind me that sometimes the most unpretentious food brings the most joy. Make them for someone you love and watch the smiles happen.

Frequently asked questions about this recipe

White fish fillets like cod, haddock, pollock, or tilapia work exceptionally well. These mild-flavored varieties hold their shape during cooking and provide the classic taste and texture you'd expect. Look for fresh, firm fillets without excessive water content for the crispiest results.

Absolutely. Bake at 200°C (400°F) for 10-12 minutes on a lined baking tray, flipping once halfway through. The coating still achieves excellent crunch, though the texture will be slightly lighter than pan-fried versions. Brush lightly with oil before baking for extra crispiness.

The tartar sauce can be made up to 3 days ahead and stored refrigerated. Fish can be breaded several hours before cooking—keep refrigerated on a parchment-lined tray. For best results, assemble sliders just before serving to maintain bun texture and fish crispiness.

Crispy oven fries or sweet potato wedges make the classic pairing. Coleslaw, potato salad, or a simple green salad with vinaigrette cuts through the richness. Lemon wedges brighten each bite, while pickles and extra tartar sauce on the side let everyone customize their sliders.

Replace all-purpose flour with a gluten-free flour blend and use gluten-free panko breadcrumbs. Ensure slider buns are certified gluten-free. The coating technique remains exactly the same—you'll still achieve excellent crunch and texture without the wheat.

Store assembled sliders wrapped in foil for up to 2 days, though best enjoyed fresh. For reheating, place in a 180°C (350°F) oven for 8-10 minutes to recrisp the coating while warming the filling. Avoid microwaving, which makes the breading soggy.

Filet O Fish Sliders

Crispy breaded fish fillets with tangy tartar sauce and cheese on soft slider buns

Prep 20m
Cook 15m
Total 35m
Servings 8
Difficulty Easy

Ingredients

Fish

  • 14 oz white fish fillets (cod or haddock), cut into 8 slider-size pieces
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/2 cup all-purpose flour
  • 2 eggs, beaten
  • 1 cup panko breadcrumbs
  • 1/2 cup cornmeal

Tartar Sauce

  • 1/2 cup mayonnaise
  • 2 tbsp finely chopped pickles
  • 1 tbsp capers, chopped
  • 2 tsp lemon juice
  • 1 tsp Dijon mustard
  • 1 tbsp fresh parsley, chopped

Assembly

  • 8 slider buns
  • 8 slices mild cheddar or processed cheese
  • 8 small lettuce leaves or shredded iceberg

Instructions

1
Preheat Cooking Surface: Preheat oven to 400°F or heat enough oil in a large skillet for shallow frying.
2
Season Fish: Season fish pieces with salt and pepper on all sides.
3
Set Up Breading Station: Arrange three shallow bowls: one with flour, one with beaten eggs, and one with mixed panko breadcrumbs and cornmeal.
4
Bread Fish Fillets: Dredge each fish piece in flour, shake off excess, dip in egg mixture, then coat thoroughly with panko-cornmeal mixture.
5
Cook Fish: Fry fish in batches for 2-3 minutes per side until golden and cooked through, or bake on a lined baking sheet for 10-12 minutes, turning once halfway.
6
Prepare Tartar Sauce: Combine mayonnaise, chopped pickles, capers, lemon juice, Dijon mustard, and parsley in a mixing bowl. Refrigerate until serving.
7
Toast Buns: Lightly toast slider buns until golden brown.
8
Assemble Sliders: Place a fish fillet on the bottom half of each bun, top with a cheese slice, lettuce, and a generous spoonful of tartar sauce. Cover with bun tops and serve immediately.
Additional Information

Equipment Needed

  • Sharp knife
  • Shallow bowls
  • Frying pan or baking sheet
  • Spatula
  • Mixing bowl

Nutrition (Per Serving)

Calories 320
Protein 17g
Carbs 33g
Fat 14g

Allergy Information

  • Contains fish, eggs, wheat (gluten), and dairy (cheese, mayonnaise)
Lea Hoffmann

Passionate home cook sharing easy recipes, cooking tips, and wholesome meal inspiration.