Fish Tacos with Creamy Lime Mustard Sauce

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These easy Fish Tacos are a perfectly balanced blend of crunchy, crispy and creamy goodness that will have you wanting tacos every day of the week, not just on Tuesday!

Plate with fish tacos


Fish tacos are one of the easiest, most delicious meals that just about everyone loves. They are mild enough for even the most sensitive taste buds, but jam packed full of fresh flavor to please even the finest taco connoisseur. Add a fresh twist to your Taco Tuesday lineup with these easy fish tacos!


A flavorful sauce can really take a simple taco and turn it into something out of this world. With this sauce, you get the citrusy flavors and creamy texture that fish tacos are known for. And the best part? You’ll only need a handful of everyday ingredients!

To make my creamy cilantro lime mustard fish sauce you will need:

  • Olive oil
  • Yellow onion
  • Garlic
  • Chicken broth or dry white wine
  • Dijon mustard
  • Zest of 1 lime
  • Juice of 1 lime
  • Heavy whipping cream
  • Chili powder

You can make this sauce ahead of time and store it in the refrigerator in an airtight container for up to three days.


Heat the olive oil over medium high heat and sauté the onions until translucent. Add in the garlic and cook until fragrant, or about 30 seconds.

Next, stir in the broth or wine, followed by the mustard, lime zest and lime juice. Stir and let simmer until it is reduced by about half.

Stir in the chili powder and heavy whipping cream and cook for about 2 minutes. Once the sauce begins to thicken, remove the sauce from the heat and set aside.

Pan with tilapia ready to make into fish tacos


White fish filets are usually used to make tacos because they have a mild flavor. For these tacos, white fish, cabbage slaw and a few other simple ingredients will give you the best tacos you’ve ever tasted.

Here is what you will need:

  • White fish filets (such as Tilapia)
  • Olive oil
  • Salt
  • Pepper
  • Soft taco tortillas
  • Red Cabbage Slaw

Close up of fish tacos


  • Place fish filets in a baking dish; drizzle with olive oil and sprinkle with salt and pepper.
  • Bake the filets for about 12-15 minutes, or until the fish flakes easily with a fork.
  • Heat the tortillas on the stove using a clean, warm frying pan. Be sure to flip the tortilla to warm both sides.
  • Next, you’ll start to assemble your tacos by adding the cooked fish to the warmed tortillas, followed by the red cabbage slaw. Then, you’ll slather the sauce over your fish and dig in. 


While the fish is baking, I like to get started prepping my toppings. So many fresh toppings go well with fish tacos! My favorites are bold flavors without too much spice, so it isn’t overwhelming when all the flavors come together. Here are a few I love:

  • Avocado or guacamole
  • Mango
  • Cilantro
  • Roasted corn
  • Pico de gallo
  • and, of course, cheese!

Photo of fish tacos


Fish tacos pair well with anything light, fresh and zesty. Citrusy flavors are especially delicious! Try some Coconut Lime Cauliflower Rice, chips with Homemade Salsa, Mango Spinach Salad with Honey Lime Dressing, or this Southwestern Avocado Dip to complete your fiesta!

P.S. Don’t forget that Cinco de Mayo is on Taco Tuesday this year!



5 from 9 votes
Photo of fish tacos

Fish Tacos + Creamy Lime Mustard Sauce

9 9 9
WW Freestyle: 10
Prep Time5 mins
Cook Time20 mins
Total Time25 mins
These easy Fish Tacos are a perfectly balanced blend of crunchy, crispy and creamy goodness that will have you wanting tacos every day of the week, not just on Tuesday!
Course: Dinner
Cuisine: American
Servings: 6 Tacos
Calories: 318


  • 1 pound white fish fillets, such as Tilapia
  • 2 tablespoons Olive oil
  • salt and pepper, to taste
  • 6 to 8 soft taco (flour) tortillas (I use low carb flour tortillas)
  • Red Cabbage Slaw, for garnish, or you can use salad greens

Creamy Lime Mustard Sauce, for garnish (recipe to follow)

  • 2 tablespoons olive oil
  • 1 whole yellow onion, diced
  • 2 cloves of garlic, minced
  • 1/2 cup white wine
  • 1 tablespoon dijon mustard
  • zest of 1 lime
  • juice of 1 lime
  • 1/3 cup heavy whipping cream
  • 1/4 teaspoon chili powder, or to taste


  • Preheat oven to 400.
  • Place fillets in a baking dish.
  • Drizzle fillets with olive oil and season with salt and pepper.
  • Bake fillets for 12-15 minutes, or until fish flakes easily with a fork.
  • While the fish is cooking, prepare the Creamy Lime Mustard Sauce.
  • Heat olive oil in a frying pan.
  • Add diced onions and cook over medium-high heat until translucent, about 3 minutes.
  • Mix in the garlic and continue to cook for 1 minute, or until fragrant.
  • Whisk in the white wine, dijon mustard, lime zest, and lime juice; cook until reduced by half; about 1 to 2 minutes.
  • Add chili powder.
  • Whisk in the whipping cream and continue to cook and whisk until sauce thickens; about 1 to 2 minutes.

Assemble Your Fish Tacos

  • Warm the tortillas by heating a medium frying pan over medium-high heat.
  • Add 1 tortilla at a time, flipping to warm both sides.
  • Break up the cooked fish with a fork and place it in a warm tortilla.
  • Top it with cabbage slaw or salad greens.
  • Add the creamy lime mustard sauce.
  • Serve.


Nutrition Facts
Fish Tacos + Creamy Lime Mustard Sauce
Amount Per Serving
Calories 318 Calories from Fat 162
% Daily Value*
Fat 18g28%
Saturated Fat 5g25%
Cholesterol 56mg19%
Sodium 282mg12%
Potassium 325mg9%
Carbohydrates 18g6%
Fiber 1g4%
Sugar 2g2%
Protein 18g36%
Vitamin A 219IU4%
Vitamin C 2mg2%
Calcium 56mg6%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.

Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.

Keywords: how to. make fish tacos, sauce for fish tacos, tilapia tacos

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45 Responses
  1. Krissy Allori

    These sound amazing. I love fish tacos but I’ve never tried to make them at home for some reason. This recipe makes them look so easy. Going on the menu plan right now.

  2. Kari M

    Wanted to let you know we had these for dinner tonight. They were fantastic! The lime mustard sauce is outstanding.

  3. Carol | a cup of mascarpone

    Love fish tacos, but your incredible sauce is what puts these over the top! These are wonderful, Kate!!!

  4. Kristy

    Ha! You have me signing the Fresh Prince song now! I still know all the words by heart. 😉 These tacos look out of this world good. We love, love, love fish tacos in this house. I’m definitely going to be putting your version on our menu! 🙂

  5. Laura Dembowski (@piesandplots)

    Now you have me wondering what people think about my bags of groceries. I looooove fish but haven’t made fish tacos yet. Must try some!

  6. kirsten@FarmFreshFeasts

    That sauce sounds fantastic, on anything (I’m picturing roasted asparagus or steamed spinach).

  7. Megan @ Pip and Ebby

    I love fish, and this sauce has me drooling! Delicious! Super funny that you check out your neighbor’s bags. It’s all true! You can tell a lot by a person’s grocery bags. 🙂

  8. Valerie

    Oh, these fish tacos look so delish!! (I love my fish!) <– kinda rhymes. May I have two tacos now, please? 😀

    P.S. I'm a grocery bag/cart peeper too!

  9. Shea @ Dixie Chik Cooks

    Looks delish – Nothing like some good fish tacos, and the mustard sauce is such a fantastic idea!! xoxo

  10. The Mom Chef ~ Taking on Magazines One Recipe at a Time

    I need to find out where you live if you’re not actually in the city. How far in the boonies are you?

    The last time I had fish tacos was when I was in Baja California and they were awesome, but they didn’t look nearly as delicious as your do.

  11. Nancy R

    G’day Kate…….I’m goin good 🙂 Or should I say Howdy!
    Feelin pretty excited about these fish taco’s you got here with this creamy mustard mayo. Gotta luv it! I betta make me some soon. This sure is a ripper!
    OK…..enough of the Aussie talk! Love this dish Kate. As an ‘Aussie’ we love our fish in any kind of dish and this looks yummo. Bring it on!
    By the way……..I love the American accent myself. As you know I have relatives in your neck of the woods and I love it when I here my aunt speak. Wish I was back in the USA. 😉

    1. Katerina Petrovska

      Oh so that’s the correct spelling – g’day! I better change it! 🙂
      If you are on your way out here, let me know!! We’ll get together for sure!

      1. Nancy R

        You are on girl! One of the first people I want to see. Then again, perhaps I may just smell the aroma of good cook’n and let my nose lead the way. 🙂

  12. Joanne

    I LOVE seeing what my neighbors are cooking/eating so you’re not alone! It’s somehow fascinating lol.

    I’ve actually never had fish tacos but you make them look so good…I need to try them!

  13. Stacy | Wicked Good Kitchen

    Not really into fish dishes either, Kate–that is, unless they’re spectacular like this dish! Yummy looking Fish Tacos…the Creamy Lime Mustard Sauce truly makes it! xo

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Katerina of Diethood
Hey There!
I'm Katerina, a cookie-maker & picture-taker! For me, eating is a moment to share, an enjoyment, a passion. I hope you enjoy my recipes!

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