Easy Blackened Tilapia Recipe with Radish & Cucumber Salsa

This fish recipe, Blackened Tilapia recipe with Radish and Cucumber Salsa came right out of one of my Weight Watcher’s Weekly’s.

What I love about this recipe is how crispy and flavorful it is on the outside but still moist on the inside.

In addition, it’s one of those low carb, easy dinners you can very easily make on a weeknight.

Blackened fish recipes are considered a Cajun cuisine, originating in New Orleans.

Blackened Tilapia Recipe

Before now, I’ve never cooked with blackened seasoning.

Needless to say, I didn’t even know where to find it in the grocery store until I got the ingredients to make this recipe.

By the way, if you shop at Weis in Frederick, it’s right next to the seafood counter.  

Blackened Tilapia Recipe

Indeed, this recipe intrigued me because I’ve always loved the taste of flaky tilapia fillets.

It’s a white, mild-tasting fish that I usually bread or broil.

Additionally, my husband and son love this tasty freshwater fish.

However, I wanted to try something different this time as opposed to my typical way of cooking tilapia.

So when I found this recipe, I just had to try it!

There’s a first time for everything, right?

Plus, the salsa that accompanies it looks incredible!

Spicy fish meal


  • Cooking Spray
  • Tilapia Fish Fillets
  • Homemade Blackening Seasoning or store-bought (typically consists of Cajun spices such as paprika, onion powder, garlic powder, thyme, oregano, cayenne pepper, kosher salt and freshly ground black pepper)
  • Radishes
  • Cucumber
  • Sweet Red Pepper
  • Scallions
  • Fresh Cilantro
  • Olive Oil or Vegetable Oil
  • Fresh Lime Juice
  • Salt
  • Black Pepper


Step 1: Coat Large Skillet with Cooking Spray

Spray a cast iron skillet or frying pan liberally with cooking spray.

In this case, I like to use Pam Cooking Spray, but you can use any.

I’ve found a good one at Aldi.

Step 2: Coat Tilapia with Blackened Seasoning

Now, remember, blackened seasoning is VERY spicy, so keep this in mind when coating both sides of your fish with it.

With a pinch of the blackened spice, rub it onto all sides of your fish.

Just remember to wash your hands thoroughly afterwards so you don’t accidentally get the spice in your eyes.

Step 3: Sautè Over Medium Heat

Be sure to lay your fish into the skillet in a single layer and cook over medium to high heat for approximately 2-3 minutes per side.

Once your fish is cooked, transfer it to a dish with a paper towel on it to absorb any grease.

However, unless you’re using a lot of oil or grease in your skillet, this fish shouldn’t be very greasy at all.

Step 4: Prepare Radish Cucumber Salsa

To prepare your salsa, slice each radish in half and then thinly slice each half into half moon shapes.

Then, in a medium bowl, combine radishes, cucumber, red pepper, scallions, cilantro, lime juice, and oil.

After that, season your salsa to taste with salt and pepper.

Salsa can be eaten at room temperature.

Then, serve over top of your fish.

Blackened Tilapia Recipe

Is Blackened Tilapia Spicy?

In one word: YES!

The end result is SO good, but it’s HOT, as in SPICY hot!

Even my husband, who usually likes to eat spicy foods, was struggling through it.

But, it really is delicious!

As a matter of fact, my son even ate it! 

Needless to say, when he was younger, I had to slice the blackened edges off for him.

That way he could eat the white fish without burning his tongue from the spiciness.

Radish Cucumber Salsa

A fantastic addition to this recipe is the refreshing radish cucumber salsa!

As a matter of fact, it is a crucial part to the blackened tilapia because it cools off the spiciness of the fish.

Side Dish For Tilapia

In addition to the blackened tilapia and radish cucumber salsa, I added another Weight Watchers recipe as the side dish.

Roasted Baby Potatoes

This Roasted Baby Potatoes with Oregano and Lemon is my favorite side along with the fish and salsa.

Bottom line, if you’re not hugely into spicy dishes, but like to walk a tad bit on the wild side, decrease the blackened seasoning a little bit.

It really gives it that nice crispy, flavorful coating on the outside of the fish.

AND, if you love spicy food and like to show off how tough you are to all of your friends, even when your face is drenched in sweat, add more blackened seasoning.

Serving Suggestions

Here are some serving suggestions for this wonderful blackened tilapia recipe:

  • Eat them as fish tacos, including the salsa
  • Cut up lemon wedges to use as a garnish so people can squeeze fresh lemon juice over top of their fish
  • Enjoy a nice glass of white wine with your meal
  • Serve with a side of tartar sauce or, even better, a homemade version, remoulade sauce
  • Other sides that go well with this simple recipe are wild rice and mango salsa

Storing Leftovers

To store any leftover blackened fish and/or salsa, place each, separately, into an airtight container.

Then, keep it in the refrigerator for 1 to 2 days. 

Blackened Tilapia with Radish Cucumber Salsa

Blackened Tilapia With Radish & Cucumber Salsa

Blackened Tilapia Recipe with Radish and Cucumber Salsa

Housewives of Frederick County
This tilapia dish is wonderfully crispy and spicy with the radish cucumber salsa included in order to cool off your tongue.
Prep Time 25 minutes
Cook Time 7 minutes
Total Time 32 minutes
Course Dinner, supper
Cuisine American
Servings 4 Servings


  • 1 spray Cooking Spray
  • 1 ½ lbs Farm-Raised Tilapia
  • 3 tbsp Blackened Seasoning, or to taste
  • 5 Red Radishes, sliced
  • 1 Cucumber, chopped
  • ½ Sweet Red Pepper, chopped
  • 3 Scallions, sliced
  • 1 tbsp Fresh Cilantro, chopped
  • 2 tbsp Fresh Lime Juice
  • 1 tsp Olive Oil
  • tsp Salt
  • tsp Black Pepper


  • Coat a large nonstick sautè pan with cooking spray.
  • Coat tilapia with blackened seasoning and cook over medium-high heat until fish flakes with a fork, about 2 to 3 minutes per side. (Do not crowd fish in pan. Only cook as much fish as can fit in a single layer. Cook in batches if necessary.)
  • Slice each radish in half and then thinly slice each half into half-moons.
  • In a medium bowl, combine radishes, cucumber, red pepper, scallions, cilantro, lime juice, and oil.
  • Season to taste with salt & pepper and serve over fish.
Keyword blackened fish, blackened recipe, blackened tilapia, blackened tilapia recipe, radish cucumber salsa, spicy fish recipe

Lastly, if you love tilapia as much as I do, you’ll adore this Baked Tilapia with Dijon Mayo Sauce recipe from my friend Liza with Amusing Foodie.

Blackened Tilapia Pin

For more seafood recipes, click on over to

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10 thoughts on “Easy Blackened Tilapia Recipe with Radish & Cucumber Salsa”

  1. That picture looks sooooo good! However, I will not be taking you up on your spicy challenge…I am a total wimp! I will cut back on the spice though and give it a try. Looks so yummy!


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