Cajun-Spiced Crispy Tilapia Sandwiches
with Potato Wedges, Slaw & Lime Mayo
- Eggs
- Fish
- Milk
- Wheat
- Soy
A fried fish sandwich made right in your kitchen in 30 minutes or less? Sign. Us. Up. For this winning rendition on a sumptuously savory sammie, mild, flaky tilapia fillets are dipped in Cajun-spiced tempura batter, then fried until golden and light-as-air crispy. They’re tucked cozily into toasted baguettes along with a swipe of tangy lime-spiked mayo and a tangle of crunchy cabbage slaw. On the side are golden Cajun-spiced potato wedges—the perfect match.
Ingredients
12 ounce
Potatoes
1 unit
Lime
1 tablespoon
Cajun Spice Blend
4 ounce
Coleslaw Mix
6 tablespoon
Mayonnaise
(Contains: Eggs)
11 ounce
Tilapia
(Contains: Fish)
82 g
Tempura Mix
(Contains: Eggs, Milk, Wheat)
2 unit
Demi-Baguette
(Contains: Soy, Wheat)
Not included in your delivery
Salt
Pepper
2 teaspoon
Cooking Oil
1 teaspoon
Sugar
Nutrition Values
Utensils
Cooking Steps
• Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce. • Cut potatoes into ½-inch-thick wedges. Zest and halve lime.
• Toss potatoes on a foil-lined baking sheet with a large drizzle of oil, half the Cajun Spice Blend (you’ll use the rest in Step 4), salt, and pepper. • Roast on top rack until browned and tender, 20-25 minutes.
• Meanwhile, in a medium bowl, combine coleslaw mix, 1 tsp sugar (2 tsp for 4 servings), 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 in Step 7.
• In a large bowl, whisk together tempura batter mix, remaining Cajun Spice Blend, ½ cup cold water, and ½ tsp salt until smooth (2⁄3 cup water and 1 tsp salt for 4 servings). TIP: If mixture is too thick, add more cold water 1 TBSP 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.
• 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 to the pan, add tilapia in a single layer. (Shake off excess batter before adding.) • Cook until golden brown and cooked through, 2-3 minutes per side. TIP: To check for doneness, cut one fillet in half. (For 4 servings, fry fish in batches, adding more oil as needed and allowing oil to get hot in between batches.) • Using tongs or a slotted spoon, transfer to a paper-towel-lined plate. Immediately season with salt and pepper.
• While tilapia cooks, halve baguettes lengthwise and toast until golden.
• 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.
Tilapia is fully cooked when internal temperature reaches 145°.
Customer reviews
Review summary
Updated on Feb 2026- Flavor: Many loved the crispy, flavorful fish with tangy slaw and lime mayo, though some found it needed more Cajun kick 🌶️.
- Ease of prep: While most found it simple to make, some had trouble with the batter sticking to the fish when frying.
- Suggestions: Consider adding extra Cajun seasoning for more spice; some preferred mixing mayo into the slaw for extra creaminess.
- Portions: Fish fillets were generously sized, often too large for the buns; many enjoyed leftovers or made extra sandwiches.
- Texture: Customers raved about the light, crispy tempura batter, creating a perfect crunch with the fresh slaw.
Reviews from our home cooks
I made the Cajun-Spiced Crispy Tilapia Sandwiches with Potato Wedges, Slaw & Lime Mayo from HelloFresh, and it was incredible! The tilapia was perfectly seasoned with just the right amount of Cajun spice, crispy on the outside and flaky on the inside. The fresh slaw and tangy lime mayo added the perfect crunch and zest, balancing out the flavors beautifully. Paired with the golden potato wedges, it felt like a restaurant-quality sandwich right in my own kitchen. The instructions were simple to follow, and the end result was both satisfying and fun to make. Definitely one of my new HelloFresh favorites!
Best fish sandwich I've ever had, hands down. The tilapia I received was beautiful, the flavor of the batter was amazing (I used all of the Cajun seasoning in it and put some Tony C on the taters), and the lime mayo and slaw matched it all perfectly.
Just okay for me. I had a few personal struggles- size of tilapia was difficult to work with and too much for sandwich, and the tempura was too runny and did not stick. I also prefer to make a true slaw and mix mayo with slaw.
I can't believe the size of the pieces of tilapia. They were huge. This was a delicious sandwich.
Exceeded expectations! Whole family enjoyed sandwiches were spicy but not too hot. Perfect cajun flavors.
The tilapia sandwich was the BEST tasting meal I received from Hello Fresh! The combination of the tempura fried fish with the coleslaw and lime mayonnaise and toasted bun was FABULOUS!! Please put it back on the menu!!
This is the best thing yet and I've been getting hello fresh for over 2 years!! The tempura gives such a nice crispness to the tilapia and the coleslaw mix gives the extra texture and flavor. Delicious!!
I LOVED this! The tempura batter on the tilapia was amazing and the added crunch of the coleslaw? Perfection. I seriously enjoyed it and will either have to order it again or figure out how to make it myself.
LOVED THIS! The coleslaw added a little extra, just right and we both found the sandwich delicious and the potato wedges were a good side!
It was okay. I couldn't get the tilapia to get as crispy as I would've like it. Although that was probably an error on my behalf not hello fresh. The flavor was great though. All the veggies were fresh!
