July 6, 2026 · 5 min

Crispy Cajun Tilapia Sandwiches with Lime Slaw and Potato Wedges

Side Dish5 min1946 cal / serving

These crispy tilapia sandwiches bring the taste of a seafood shack right to your kitchen. Mild, flaky tilapia fillets are dipped in a light tempura batter seasoned with Cajun spices, then fried until golden and crunchy. They’re tucked into toasted baguettes with a zesty lime mayo and a crunchy cabbage slaw.

On the side, enjoy oven-roasted potato wedges tossed with the same Cajun spice blend. This meal comes together in about 30 minutes, making it perfect for a quick weeknight dinner that feels special.


Recipe details

Side Dish5 min1946 cal / serving2 servings

Nutrition per serving

Calories1946 kcalProtein37 gFat151.5 gCarbs112.6 gSugar67.6 gFiber3.5 gSodium2592 mg

Dietary labels

Gluten-free: noLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: containsMilk / dairy: containsEgg: containsFish: containsShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: containsSesame: not detectedMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Potatoesounce PotatoesView ingredient guide
Green Beans8 ounce Green BeansView ingredient guide
Tilapia11 ounce TilapiaView ingredient guide
Mayonnaise6 tablespoon MayonnaiseView ingredient guide
Tempura Batter Mix82 g Tempura Batter MixView ingredient guide
Lime1 unit LimeView ingredient guide
Coleslaw Mix4 ounce Coleslaw MixView ingredient guide
Demi-Baguette2 unit Demi-BaguetteView ingredient guide
Salt2 teaspoon (tsp) SaltView ingredient guide
Sugar1 teaspoon (tsp) SugarView ingredient guide
Cooking Oil2 teaspoon (tsp) Cooking OilView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Adjust rack to top position and preheat oven to 425°F. Wash and dry produce. Cut potatoes into ½-inch-thick wedges. Zest and halve lime.
  2. Toss potatoes on a foil-lined baking sheet with a large drizzle of oil, half the Cajun Spice Blend, salt and pepper. Roast on top rack until browned and tender, 20-25 minutes.
  3. Meanwhile, in a medium bowl, combine coleslaw mix, 1 tsp sugar, juice from half the lime, salt and pepper. In a small bowl, combine mayonnaise and as much lime zest as you like. Refrigerate slaw and lime mayo until ready to use.
  4. In a large bowl, whisk together tempura batter mix, remaining Cajun Spice Blend, ½ cup cold water and ½ tsp salt until smooth. If mixture is too thick, add more cold water 1 tablespoon at a time until it reaches a pancake-batter-like consistency. Pat tilapia dry with paper towels. Season all over with salt and pepper. Add tilapia to bowl with batter; gently turn until evenly coated.
  5. Heat a ¼-inch layer of oil in a large, heavy-bottomed pan over medium-high heat. Once oil is hot enough that a drop of batter sizzles when added, add tilapia in a single layer (shake off excess batter). Cook until golden brown and cooked through, 2-3 minutes per side. Transfer to a paper-towel-lined plate. Immediately season with salt and pepper.
  6. While tilapia cooks, halve baguettes lengthwise and toast until golden.
  7. Spread cut sides of baguette halves with as much lime mayo as you like; fill with tilapia and slaw. Divide sandwiches between plates; serve with potato wedges and any remaining lime mayo on the side for dipping.

Recipe Tips

For extra crispy fish, make sure the oil is hot before frying. Test with a drop of batter.

If your batter is too thick, add cold water 1 tablespoon at a time until it’s like pancake batter.

Cook fish in batches if needed to avoid overcrowding the pan.

FAQ

Can I use a different fish?

Yes, any mild white fish like cod or pollock works well.

Can I make this gluten-free?

Use a gluten-free tempura batter mix and ensure your baguettes are gluten-free.

How do I reheat leftovers?

Reheat fish in a 350°F oven for 5-7 minutes to keep it crispy. Microwave slaw and mayo separately.

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