Delicious Keto Tuna Poke Bowl with Cauliflower Rice: A Healthy, Low-Carb Recipe

Embark on a culinary journey to the heart of Hawaii with our Keto Tuna Poke Bowl with Cauliflower Rice. This dish is a celebration of flavors, textures, and the joy of eating well while adhering to a ketogenic lifestyle. The recipe we’re diving into today is not just a meal; it’s an experience that brings the essence of poke to your table, without the worry of excess carbs.

Perfect for anyone on a keto diet, this tuna poke bowl is a symphony of low-carb ingredients that come together to create a dish that’s both nutritious and satisfying. With its focus on high-quality proteins and fats, it’s designed to fuel your body while tantalizing your taste buds. So, let’s get ready to enjoy a dish that’s as delightful to the palate as it is beneficial for your health!

Keto Tuna Poke Bowl with Cauliflower Rice

Recipe Details

The Keto Tuna Poke Bowl with Cauliflower Rice is a dish that resonates with my passion for healthy, flavorful eating. Inspired by the traditional Hawaiian poke bowls, this keto-friendly version swaps out the usual rice for a light, fluffy cauliflower rice, making it perfect for those on a ketogenic diet.

Each ingredient has been carefully selected to maintain the integrity of a poke bowl while ensuring it aligns with keto dietary guidelines. The star of the dish, sushi-grade tuna, is rich in omega-3 fatty acids, which are essential for heart health and cognitive function. The cauliflower rice serves as a fantastic low-carb substitute for rice, providing a similar texture and a neutral base to absorb the flavors of the marinade.

Additional elements like avocado add a creamy texture and are packed with healthy fats, while the sesame seeds contribute a subtle crunch and a dose of minerals. The optional toppings, such as cucumber and radishes, introduce a fresh crunch and are low in carbs, making them perfect for adding variety to your keto diet without the guilt.

Preparing Keto Tuna Poke Bowl

The Method

Creating the perfect Keto Tuna Poke Bowl with Cauliflower Rice requires a blend of precision and artistry. The key to maximizing flavor lies in the marination process. When marinating the tuna, ensure that each piece is well-coated with the soy sauce, sesame oil, and other seasonings. This not only infuses the fish with rich flavor but also tenderizes it, resulting in a melt-in-your-mouth texture.

When preparing the cauliflower rice, it’s crucial to achieve the right consistency. Sautéing the riced cauliflower in olive oil until it’s tender but not mushy will give you a rice-like texture that’s both pleasing to the palate and the eye. A golden color indicates that it’s cooked perfectly, with a slight nuttiness that complements the tuna.

Assembling the bowl is where your creativity can shine. Arrange the marinated tuna and avocado aesthetically atop the cauliflower rice, and don’t be afraid to play with the placement of your toppings. The final touch of black sesame seeds and spicy mayo not only adds to the flavor profile but also gives your dish a professional, restaurant-quality appearance.

Keto Tuna Poke Bowl Ready to Serve


Spicy Tuna Variation

For those who enjoy a kick of heat, transform your poke bowl into a spicy delight. Add a tablespoon of sriracha or your favorite hot sauce to the tuna marinade. This will infuse the fish with a fiery flavor that pairs wonderfully with the coolness of the avocado and the crispness of the fresh toppings.

Salmon Poke Bowl

If tuna isn’t your preference or you’re looking for variety, substitute the tuna with fresh, sushi-grade salmon. Salmon is equally rich in omega-3 fatty acids and offers a slightly different but equally delicious flavor profile. The fatty richness of salmon is a perfect match for the lightness of the cauliflower rice.

Vegetarian Poke Bowl

For a vegetarian twist, replace the tuna with tofu. Press and cube firm tofu, then marinate it in the same mixture as you would the tuna. Pan-fry the tofu until it’s crispy on the outside, then use it as the protein base for your poke bowl. This variation is still keto-friendly and provides a satisfying plant-based alternative.


If you’re unable to find sushi-grade tuna, you can opt for canned tuna in water. It’s a convenient and budget-friendly alternative that still aligns with the keto diet. Drain the tuna well before using it in the marinade to ensure the flavors are not diluted.

In place of soy sauce or tamari, consider using coconut aminos. This is a soy-free alternative that’s lower in carbs and provides a similar umami flavor. It’s perfect for those with soy allergies or anyone looking to reduce their sodium intake.

For a different type of crunch, swap out the cucumber and radishes with chopped nuts like macadamias or almonds. These nuts are keto-friendly and will introduce a new texture and flavor dimension to your poke bowl.


Can I use frozen cauliflower rice?

Yes, frozen cauliflower rice is a convenient alternative to fresh cauliflower. Just ensure you thaw and drain it well to avoid excess moisture in your dish.

Is this recipe gluten-free?

As long as you use tamari or a gluten-free soy sauce, this recipe is entirely gluten-free.

How long can I store the leftovers?

It’s best to consume the poke bowl immediately. However, you can store the marinated tuna and cauliflower rice separately in the refrigerator for up to one day.

Can I make this dish spicy?

Absolutely! Adjust the heat by adding more red pepper flakes to the marinade or by drizzling extra spicy mayo on top.

Is this dish suitable for meal prep?

Yes, you can prepare the components ahead of time and assemble the bowls when ready to eat.


Keto Tuna Poke Bowl with Cauliflower Rice

Experience the vibrant flavors of Hawaii with this Keto Tuna Poke Bowl. It's a perfect blend of fresh, zesty tuna and riced cauliflower, delivering all the traditional poke joys without the carbs. This bowl is a powerhouse of protein and healthy fats, making it an ideal meal for anyone following a ketogenic lifestyle.
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Prep Time 20 minutes
Cook Time 5 minutes
Total Time 25 minutes
Course Dinner, Lunch
Cuisine Hawaiian, Japanese
Servings 2 people
Calories 450 kcal


  • Medium bowl
  • Large skillet
  • Knife
  • Cutting board
  • Measuring cups and spoons



  • 12 oz fresh sushi-grade tuna diced
  • 2 tbsp soy sauce or tamari
  • 1 tsp sesame oil
  • ½ tsp rice vinegar
  • ¼ tsp crushed red pepper flakes
  • ½ avocado peeled and sliced
  • 1 green onion thinly sliced
  • 1 tsp black sesame seeds

Cauliflower Rice

  • 1 head cauliflower riced (about 4 cups)
  • 1 tbsp olive oil
  • Salt to taste
  • Pepper to taste

Optional Toppings

  • ¼ cup cucumber diced
  • ¼ cup radishes thinly sliced
  • ¼ cup seaweed salad
  • 1 tbsp mayonnaise mixed with 1/2 tsp sriracha (for spicy mayo)


  • Begin by preparing the tuna. In a medium bowl, combine the diced tuna, soy sauce, sesame oil, rice vinegar, and red pepper flakes. Gently stir to coat the tuna evenly. Cover and refrigerate for at least 15 minutes to marinate.
  • While the tuna marinates, heat the olive oil in a large skillet over medium heat. Add the riced cauliflower to the skillet, season with salt and pepper, and sauté for about 5 minutes, or until the cauliflower is tender and begins to turn golden. Remove from heat and allow to cool slightly.
  • Divide the sautéed cauliflower rice between two bowls as the base of your poke bowls.
  • Remove the marinated tuna from the refrigerator and give it a quick stir. Evenly distribute the tuna on top of the cauliflower rice in both bowls.
  • Add the sliced avocado, green onions, and any additional toppings you desire to each bowl.
  • Garnish with black sesame seeds and a drizzle of spicy mayo, if using.
  • Serve immediately and enjoy your Keto Tuna Poke Bowl!


If you cannot find fresh sushi-grade tuna, you can substitute with another type of fresh fish or even canned tuna in water for a quicker alternative.
Feel free to customize the toppings according to your taste preferences and what you have available.
Always consult with a nutritionist or your healthcare provider when making changes to your diet, especially if you have specific dietary needs or restrictions.


Calories: 450kcalCarbohydrates: 14gProtein: 40gFat: 26gFiber: 7gNet Carbs: 7g
Keyword cauliflower rice, Healthy Tuna Bowl, Keto Hawaiian Recipe, Keto Tuna Poke Bowl, Low Carb Poke
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