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Keto-Friendly Tuna Poke Bowl

Dom Lorenzo
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This Keto-Friendly Tuna Poke Bowl is light, fresh, and packed with protein and healthy fats. It's a quick, no-cook meal perfect for lunch or dinner. Traditional poke bowls usually come with rice, but this version swaps in cauliflower rice or mixed greens for a low-carb alternative.

Keto-Friendly Tuna Poke Bowl served in a white ceramic bowl.
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Preparation Overview

This no-cook recipe comes together in just a few simple steps—marinate the tuna, prep your veggies, and assemble everything over a bed of cauliflower rice. It’s fresh, quick, and perfect for a light yet satisfying keto meal ready in just 15 minutes.

Chef's note

Swap cauliflower rice with shredded cabbage or zucchini noodles for a different texture. You can also add diced jalapeños for extra heat or top it with a drizzle of spicy mayo. To add extra flavor, drizzle on sesame oil or a little extra sriracha.

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  • Prep Time: 15 minutes
  • Cooking Time: 0 minutes (no cooking required)
  • Total Time: 15 Minutes
  • Difficulty Level: Easy
  • Recipe Makes 2 Servings

Ingredients for This Keto-Friendly Tuna Poke Bowl

  • 8 oz sashimi-grade tuna, cubed
  • 1 cup cauliflower rice
  • 1 tablespoon soy sauce
  • 1 teaspoon sesame oil
  • 1 teaspoon sriracha
  • 1 tablespoon rice vinegar
  • ½ avocado, sliced
  • ½ cucumber, thinly sliced
  • ¼ cup sliced radishes
  • 1 tablespoon sesame seeds
  • 2 tablespoon chopped scallions
  • ¼ cup seaweed salad (optional)

Ingredient Substitutions

  • Cauliflower rice: Use zucchini noodles or shredded cabbage as an alternative base.
  • Soy sauce: Replace with coconut aminos for a soy-free option.

Additional Ingredients

  • Pickled ginger (sugar-free): Pickled ginger adds a tangy bite that brightens the flavors without adding extra carbs.
  • Macadamia nuts: Add chopped macadamia nuts to bring a rich, buttery crunch that balances the softness of the tuna and avocado.
  • Chili flakes: It offer a subtle heat that enhances the savory and umami notes without altering the carb content.

Kitchen Tools Required

  • Mixing bowl
  • Sushi knife
  • Cutting board
  • Whisk

Tool Substitute Options

  • Whisk: If you don’t have a whisk, a fork works fine for mixing the marinade.
  • Sushi knife: A sushi knife is best, but any very sharp knife will do.

How to Make a Keto-Friendly Tuna Poke Bowl: Step-by-Step Guide

Cooking Method

  • No-cook recipe

Preparation Steps

  1. Wash and slice the cucumber, radishes, and scallions. A mandolin slicer works well for even cuts.
  2. Cube the tuna into bite-sized pieces.
  3. Prepare cauliflower rice by lightly sautéing or using it raw.

Instruction steps

  1. In a mixing bowl, whisk together soy sauce, sesame oil, sriracha, and rice vinegar to create the marinade.
  2. Add the cubed tuna to the marinade and toss to coat. Let it sit for 5-10 minutes while you prepare the toppings.
  3. Assemble your bowl. Start with a base of cauliflower rice or greens, then add marinated tuna, sliced avocado, cucumber, radishes, and seaweed salad (if using).
  4. Garnish with sesame seeds and chopped scallions.

Chef's pro tip

Use sashimi-grade tuna for safety and the best flavor. If fresh tuna isn’t available, high-quality canned tuna in olive oil is an option—but skip the marinating step and mix the tuna with the dressing instead.

What to Serve with a Keto Tuna Poke Bowl

  • Seaweed chips: They provide a crispy, salty crunch that complements its tender tuna and light cauliflower rice.
  • Pickled ginger: It delivers a tangy bite that refreshes your palate and cuts through its rich, savory flavors.
  • Steamed broccoli: It soaks up the leftover marinade and adds a mild, tender bite to round out the plate.
  • Grilled asparagus: It introduces a smoky flavor that highlights its bold, umami-packed tuna.

How to Make It Healthier

For a soy-free version, replace soy sauce with coconut aminos and use avocado oil instead of sesame oil. If you're watching sodium, skip the sriracha.

Time-Saving Tips

  • Buy pre-riced cauliflower or use frozen cauliflower rice to cut down on prep time.
  • Pre-sliced veggies are a great option to speed up the process.

What Can I Prepare Ahead of Time?

  • Prepare the marinade and chop the vegetables a day in advance.
  • Keep the tuna and fresh ingredients separate unti ready to serve to maintain freshness.

Storage Instructions

  • Store marinated tuna and vegetables separately in airtight containers in the refrigerator.
  • The tuna should be consumed within 24 hours for maximum freshness.

Recipe wrap-up and conclusion

This Keto-Friendly Tuna Poke Bowl is the perfect low-carb meal—light, fresh, and packed with flavor. It’s quick to prepare and great for meal prep. Whether you’re looking for a healthy lunch or dinner, this dish has you covered.

Frequently asked questions

Yes, just make sure to thaw it completely and ensure it is sashimi-grade for safety.

Try zucchini noodles, shredded cabbage, or mixed greens as a low-carb base.

Yes, but keep the tuna separate from the vegetables until serving to maintain texture and freshness.

Yes, but only if you modify them to be low-carb. Traditional poke bowls contain rice and sugary sauces, which are not keto-friendly. To keep it keto, swap rice for cauliflower rice or greens and use a low-carb marinade with ingredients like soy sauce (or tamari), sesame oil, and rice vinegar.

Yes, standard poke bowls contain high-carb ingredients like white rice, sugary marinades, and sometimes fruit. To make a keto-friendly version, remove rice, avoid sweetened sauces, and load up on low-carb veggies like cucumbers, radishes, and avocado.

Yes, canned tuna is keto-friendly as it contains zero carbs and is high in protein and healthy fats. Choose tuna packed in olive oil for extra healthy fats and flavor. Avoid varieties with added sugars or fillers.

Yes! Tuna with mayonnaise is keto-friendly and a great source of healthy fats. Choose a sugar-free, avocado oil-based mayo to keep it clean. You can mix tuna and mayo for an easy keto tuna salad or use it as a poke bowl topping.

📖 Recipe

Keto-Friendly Tuna Poke Bowl served in a white ceramic bowl.

Keto-Friendly Tuna Poke Bowl

This is a quick, no-cook meal packed with fresh veggies, tender marinated tuna, and healthy fats—perfect for a light, low-carb lunch or dinner.
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Course: dinner, lunch, Main Course
Cuisine: Hawaiian
Prep Time: 15 minutes
Total Time: 15 minutes
Servings: 2
Calories: 161kcal

Ingredients

  • 8 oz sashimi-grade tuna cubed
  • 1 cup cauliflower rice
  • 1 tablespoon soy sauce
  • 1 teaspoon sesame oil
  • 1 teaspoon sriracha
  • 1 tablespoon rice vinegar
  • ½ avocado sliced
  • ½ cucumber thinly sliced
  • ¼ cup sliced radishes
  • 1 tablespoon sesame seeds
  • 2 tablespoon chopped scallions
  • ¼ cup seaweed salad optional
US Customary - Metric

Instructions

  • In a mixing bowl, whisk together soy sauce, sesame oil, sriracha, and rice vinegar to create the marinade.
  • Add the cubed tuna to the marinade and toss to coat. Let it sit for 5-10 minutes while you prepare the toppings.
  • Assemble your bowl. Start with a base of cauliflower rice or greens, then add marinated tuna, sliced avocado, cucumber, radishes, and seaweed salad (if using).
  • Garnish with sesame seeds and chopped scallions.

Nutrition

Nutrition Facts
Keto-Friendly Tuna Poke Bowl
Amount Per Serving
Calories 161 Calories from Fat 108
% Daily Value*
Fat 12g18%
Saturated Fat 2g13%
Polyunsaturated Fat 3g
Monounsaturated Fat 6g
Sodium 592mg26%
Potassium 676mg19%
Carbohydrates 12g4%
Fiber 6g25%
Sugar 4g4%
Protein 5g10%
Vitamin A 192IU4%
Vitamin C 51mg62%
Calcium 84mg8%
Iron 2mg11%
*

Nutritional values are estimates only and do not include carbs from sugar alcohols.

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