Skip to Content

Grilled Tuna Steak Tacos with Coleslaw

Delicious marinated and grilled tuna steaks are at the base of these mouthwatering Tuna Steak Tacos. The new standard for fish tacos, these grilled tuna tacos are super easy to whip up for a delicious meal you are certain to love!

This post may contain Affiliate Links.

Five tuna steak tacos sitting on a string platter garnished with sriracha mayo and sesame seeds.

Seared Tuna Tacos

This is one of those recipes that seems so fancy but in reality it is actually really easy. The trickiest part is finding a good price on tuna!

Whenever I see wild caught tuna on sale I get it to make this recipe!

It is a simple marinade for the tuna steaks, an easy coleslaw that is simple to mix together, as well as easy garnishes makes its a foolproof meal!

Angled view of the tuna steak tacos showing off the sliced tuna steak overtop a bed of coleslaw and topped with sriracha mayo and sesame seeds.

Ingredients

  • Tuna Steaks – Two that weigh about half a pound each, so equaling one pound total. I have noticed I prefer ones that are on the smaller but thicker side than ones that are wider and thinner.
  • Soy Sauce – You will use soy sauce for both the marinade and the coleslaw. Feel free to use low-sodium if preferred.
  • Sesame Oil – The sesame oil will also be used for both the marinade and coleslaw. It’s especially important to place in the marinade because the oil will help prevent the tuna from sticking to the grill.
  • Cabbage Coleslaw Mix – Just grab a bag of the classic trio mix from the store, the one with green cabbage, red cabbage, and carrots.
  • Lime – Juice of one medium sized lime for the coleslaw, using a fresh lime will really help amp up the flavor!
  • Honey – Just a little sweetness for the coleslaw.
  • Mayo – Or should I say mayonnaise, these tacos greatly benefit from a good kick of sriracha mayo!
  • Sriracha – If you are looking for a spicer sriracha mayo it is totally okay to add more.
  • Corn Tortillas – This is one of those taco recipes where is think the corn tortillas really work above flour tortillas but if you are in a pinch or really prefer the flour tortillas they will totally work, just make sure either way you get the small sized ones.
  • Sesame Seeds – For garnishing the tacos!

For a complete detailed list of the ingredients continue towards the bottom of the page.

Ingredients needed to make tuna steak tacos laid out on a tabletop.

Instructions

To start you will marinade the tuna steaks. Add the steaks to a bowl or bag and top with 1/4 cup soy sauce and 2 teaspoons of sesame oil. Cover and let rest in the fridge at least 30 minutes but up to 6 hours. Fish takes on a marinade quick, so an overnight marinade is not necessary.

Side by side photo collage showing the tuna steaks and the tuna steaks in marinade.

Before you cook the fish (it cooks fast) you want to make the coleslaw. In a large bowl whisk together the juice of one lime, 2 tablespoons soy sauce, 1 teaspoon sesame oil, and 1 teaspoon honey. Add the cabbage and toss to combine and coat. The coleslaw can be made up to 2 hours ahead of eating.

A large bowl filled with asian coleslaw ready to be used for the tuna steak tacos.

To make the sriracha mayo, mix mayo & sriracha until combined. Feel free to make the sriracha mayo as spicy as you prefer!

Side by side photos of sriracha and mayo before and after being mixed into sriracha mayo.

Now we are ready to cook the tuna. Preheat the grill to medium-high heat. Take the tuna steaks out of the marinade, shaking off any excess marinade. Grill the tuna steaks 3 minutes a side, 6 minutes total. Let rest 3-5 minutes. 

Grilled tuna steaks sitting on a white plate.

While the fish is resting switch the grill to low. Add the tortillas in a single layer and grill the tortillas 1 to 2 minutes per side. Wrap in a clean towel to keep warm.

To make the tuna steak tacos slice the tuna into strips. Build the tacos with the coleslaw, sliced tuna, sriracha mayo, and top with sesame seeds. Enjoy!

A side view of a close up of a tuna steak taco showing of slice tuna with pink middle garnished with sriracha mayo and sesame seeds.

Tips, Tricks, and Questions

What is the difference between ahi tuna and regular tuna?

The term Ahi gets used a lot when dealing with tuna, so what is it? Ahi is simply Hawaiian for Yellowfin tuna. When shopping for tuna steaks you might see a variety of different tunas including Albacore, Yellowfin, Bigeye and Bluefin Tuna. Any variety will work although Albacore is considered the “white tuna”, so if you have your choice I would look for Bluefin, Bigeye, or Yellowfin aka Ahi Tuna.

My tuna is still pink in the middle is that okay?

Yes!

Looking for side dishes to go with these Tuna Steak Tacos? You might like these:

You might also like:

Overhead view of four seared tuna tacos on a wooden serving board garnished with sriracha mayo and sesame seeds.

Tuna Steak Tacos

Yield: 4 servings
Prep Time: 10 minutes
Cook Time: 8 minutes
Total Time: 18 minutes

Delicious Seared Tuna Steak Tacos made with marinated tuna steaks, asian slaw, sriracha mayo, and topped with sesame seeds. An easy yet impressive meal!

Ingredients

For the Tuna:

  • 2 half-pound tuna steaks*
  • 1/4 cup soy sauce
  • 2 tsp sesame oil

For the Coleslaw:

  • 1 14-ounce bag cabbage coleslaw mix
  • 1 lime
  • 2 tablespoons soy sauce
  • 1 teaspoon sesame oil
  • 1 teaspoon honey

For the Sriracha Mayo

  • 3 tbsp Mayo
  • 1 tsp sriracha

For servings:

  • 12 Corn tortillas
  • Sesame seeds

Instructions

    1. Marinade the tuna steaks, add the steaks to a bowl or bag and top with soy sauce and sesame oil. Cover and let rest in the fridge at least 30 minutes.
    2. Before cooking the tuna, make the coleslaw. Whisk together the lime juice, soy sauce, sesame oil, and honey. Add the cabbage and toss to combine.
    3. To make the sriracha mayo, mix mayo & sriracha until combined.
    4. Preheat the grill to medium-high heat. Grill the tuna steaks 3 minutes a side, 6 minutes total. Let rest 3-5 minutes.
    5. While the tuna is resting switch the grill to low. Add the tortillas in a single layer and grill the tortillas 1 to 2 minutes per side. Wrap in a clean towel to keep warm.
    6. Slice the tuna into strips. Build the tacos with the coleslaw, tuna, sriracha mayo, and top with sesame seeds.

Notes

*2 steaks, 1 pound total

To get clean cuts on the tuna cut perpendicular to the natural grain of the fish.

Nutrition Information:
Yield: 4 Serving Size: 3 tuna tacos
Amount Per Serving: Calories: 536Total Fat: 21gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 17gCholesterol: 60mgSodium: 1577mgCarbohydrates: 48gFiber: 9gSugar: 8gProtein: 42g

Nutritional data is automated, final nutritional information will depend on ingredients used and any changes made.

Did you make this recipe?

Please leave a comment below on the blog or share a photo with me tag @the_schmidty_wife! Can't wait to see what you made!

And make sure you are following me on Instagram, Pinterest, and Facebook for all the latest recipes!

Peace & Love

Lauren, The Schmidty Wife

This site uses Akismet to reduce spam. Learn how your comment data is processed.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Skip to Recipe