Nutrition Facts for Keto spicy tuna

Keto Spicy Tuna

Satisfy your cravings for bold, zesty flavors with this Keto Spicy Tuna recipe—a low-carb twist on a classic favorite that's ready in just 20 minutes! Featuring fresh, seared tuna steak tossed in a creamy, keto-friendly spicy mayo sauce, this dish is elevated with the vibrant crunch of cucumber, buttery avocado, and a hint of lime. Perfect for keto enthusiasts, it swaps traditional sweeteners for sugar-free ingredients like sriracha and soy sauce (or coconut aminos for stricter keto diets). Garnished with sesame seeds and served alongside seaweed sheets, this dish is versatile enough for an elegant appetizer or a light, protein-packed meal. Quick, easy, and bursting with flavor, this recipe is sure to become a go-to in your healthy eating routine!

Nutriscore Rating: 76/100
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Image of Keto Spicy Tuna
Prep Time:15 mins
Cook Time:5 mins
Total Time:20 mins
Servings: 2

Ingredients

  • 200 g Fresh tuna steak
  • 2 tbsp Mayonnaise (sugar-free, keto-friendly)
  • 1 tsp Sriracha (sugar-free)
  • 1 tsp Soy sauce (or coconut aminos for stricter keto)
  • 1 whole Avocado
  • 0.5 whole Cucumber
  • 1 stalk Green onion
  • 1 tsp Sesame oil
  • 1 tsp Lime juice
  • 0.5 tsp Chili flakes
  • 1 tsp Sesame seeds (optional, for garnish)
  • 1 sheet Seaweed sheets (optional, for serving)
  • 0.25 tsp Salt
  • 0.25 tsp Black pepper

Directions

Step 1

Pat the tuna steak dry and season both sides with a pinch of salt and black pepper.

Step 2

Heat a skillet over medium-high heat and add sesame oil. Sear the tuna steak for 1-2 minutes on each side for medium-rare, or adjust to your desired doneness. Remove from skillet and let it rest for a few minutes before dicing into small cubes.

Step 3

In a small bowl, mix the mayonnaise, sriracha, soy sauce, lime juice, and chili flakes to create a spicy mayo sauce. Adjust sriracha to your spice preference.

Step 4

Slice the avocado in half, remove the pit, and cube the flesh. Slice the cucumber into thin half-moons. Chop the green onion into fine pieces.

Step 5

In a mixing bowl, combine the diced tuna, avocado cubes, cucumber, and green onion. Drizzle the spicy mayo sauce over the ingredients and gently toss to coat evenly.

Step 6

Serve the keto spicy tuna in a bowl, sprinkle with sesame seeds for garnish, and serve with a side of seaweed sheets (if using) for scooping. Enjoy immediately!

Nutrition Facts

Serving size (583.8g)
Amount per serving % Daily Value*
Calories 906.8
Total Fat 68.8g 0%
Saturated Fat 10.9g 0%
Polyunsaturated Fat 8.6g
Cholesterol 85.5mg 0%
Sodium 1272.9mg 0%
Total Carbohydrate 22.8g 0%
Dietary Fiber 12.5g 0%
Total Sugars 4.1g
Protein 52.9g 0%
Vitamin D 454IU 0%
Calcium 114.4mg 0%
Iron 4.8mg 0%
Potassium 2157.8mg 0%
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 67.2%
Protein: 23.0%
Carbs: 9.9%