About This Recipe

Bowls are one of the most versatile meals you can enjoy on a keto diet, and this Keto Tuna Avocado Bowl delivers everything you need in one nutrient-packed dish. With seared tuna as the protein base, creamy avocado for healthy fats, and cauliflower rice as a low-carb substitute for traditional grains, this bowl offers a balanced, satisfying meal that’s perfect for lunch or dinner.

Tuna is an excellent choice for keto because it’s lean, rich in protein, and loaded with omega-3 fatty acids that support heart health and brain function. When paired with avocado, you get the perfect balance of protein and healthy fats, which helps keep you full and energized. Fresh vegetables like cucumber, radish, and a touch of leafy greens add crunch, color, and fiber while keeping carbs low.

The dressing is simple but powerful: sesame oil, soy sauce (or tamari for gluten-free), rice vinegar, and a touch of sugar-free sweetener to balance the flavors. A sprinkle of sesame seeds and green onions ties everything together, making this bowl not only nutritious but also incredibly flavorful.

One of the best parts about this dish is its adaptability. You can prepare it as a raw poke-style bowl using sushi-grade tuna, or lightly sear the tuna for a quick, restaurant-quality upgrade. Don’t like tuna? Swap it for salmon, shrimp, or even grilled chicken while keeping the same keto-friendly base.

This recipe is quick to make, visually stunning, and endlessly customizable. It’s great for meal prep, easy weeknight dinners, or even an elevated lunch when you want something that feels light yet indulgent. Plus, with low net carbs, it fits seamlessly into your keto lifestyle without compromising taste or satisfaction.

Jump to Recipe

Why You’ll Love This Recipe

High in protein, healthy fats, and fiber 🥑🐟
Low-carb alternative to poke or sushi bowls
Quick and easy—ready in 20 minutes
Fresh, vibrant, and customizable
Perfect for lunch or dinner

Servings: 2

Ingredients

For the bowl:
- 8 oz (225 g) sushi-grade tuna steak (seared or raw)
- 1 medium avocado, diced
- 2 cups cauliflower rice (lightly sautéed or raw)
- 1/2 cucumber, thinly sliced
- 4 radishes, thinly sliced
- 1/4 cup green onions, chopped
- 1 tbsp sesame seeds (black or white)
For the dressing:
- 2 tbsp soy sauce (or tamari for gluten-free)
- 1 tbsp sesame oil
- 1 tsp rice vinegar
- 1/2 tsp powdered erythritol (optional, for balance)
- Pinch of red pepper flakes (optional)

Instructions

Prepare the cauliflower rice by sautéing lightly in a pan for 3–4 minutes, or keep raw for a fresh texture.
Slice the avocado, cucumber, and radishes; set aside.
If using seared tuna, heat a skillet over medium-high, sear tuna for 1–2 minutes per side, then slice thinly.
Whisk together soy sauce, sesame oil, rice vinegar, sweetener, and red pepper flakes to make the dressing.
Assemble bowls by layering cauliflower rice, tuna slices, avocado, cucumber, and radishes.
Drizzle dressing over the top, sprinkle with sesame seeds and green onions, and serve immediately.

Nutrition

(per serving)

Calories: ~380
Fat: 26 g
Protein: 32 g
Net Carbs: 5 g
Fiber: 6 g

FAQ

Can I use canned tuna instead of fresh?
Yes, but fresh or seared tuna gives the best flavor and texture.

Is this recipe dairy-free?
Yes, it’s naturally dairy-free.

Can I meal prep this bowl?
Yes, but store the dressing separately and add avocado just before serving.

What’s the best substitute for tuna?
Salmon, shrimp, or grilled chicken all work well.

Variations & Substitutions

Swap tuna for cooked shrimp or salmon 🦐
Add sliced jalapeños for heat 🌶️
Use spinach or arugula as a base instead of cauliflower rice
Top with nori strips for sushi-inspired flavor

Serving Suggestions

Serve as a light dinner with sparkling water or a keto mocktail
Pair with a side of miso soup for an Asian-inspired meal
Make mini bowls for a party or appetizer spread
Add a soft-boiled egg for extra protein

Recipe Card

Keto Tuna Avocado Bowl – Low Carb Poke Style

Name: Keto Tuna Avocado Bowl – Low Carb Poke Style
Prep time: 15 min
Total time: 20 min
Yield: 2 servings
Cuisine: Low Carb / Keto
Ingredients: 8 oz (225 g) sushi-grade tuna steak (seared or raw); 1 medium avocado, diced; 2 cups cauliflower rice (lightly sautéed or raw); 1/2 cucumber, thinly sliced; 4 radishes, thinly sliced; 1/4 cup green onions, chopped; 1 tbsp sesame seeds (black or white); 2 tbsp soy sauce (or tamari); 1 tbsp sesame oil; 1 tsp rice vinegar; 1/2 tsp powdered erythritol (optional); Pinch of red pepper flakes (optional)

A fresh and nourishing keto tuna avocado bowl with cauliflower rice, crisp vegetables, and a sesame-soy dressing. Low-carb, protein-packed, and bursting with flavor.

Yield: 2 servings • Prep: 15 min • Total: 20 min

Ingredients

8 oz (225 g) sushi-grade tuna steak (seared or raw)
1 medium avocado, diced
2 cups cauliflower rice (lightly sautéed or raw)
1/2 cucumber, thinly sliced
4 radishes, thinly sliced
1/4 cup green onions, chopped
1 tbsp sesame seeds (black or white)
2 tbsp soy sauce (or tamari)
1 tbsp sesame oil
1 tsp rice vinegar
1/2 tsp powdered erythritol (optional)
Pinch of red pepper flakes (optional)

Instructions

Prepare the cauliflower rice by sautéing lightly in a pan for 3–4 minutes, or keep raw for a fresh texture.
Slice the avocado, cucumber, and radishes; set aside.
If using seared tuna, heat a skillet over medium-high, sear tuna for 1–2 minutes per side, then slice thinly.
Whisk together soy sauce, sesame oil, rice vinegar, sweetener, and red pepper flakes to make the dressing.
Assemble bowls by layering cauliflower rice, tuna slices, avocado, cucumber, and radishes.
Drizzle dressing over the top, sprinkle with sesame seeds and green onions, and serve immediately.

Nutrition (per serving)

Calories: 380
Fat: 26 g
Protein: 32 g
Net Carbs: 5 g
Fiber: 6 g

Lunch / Dinner • Low Carb / Keto • keto tuna bowl, tuna avocado bowl, keto poke bowl, low carb tuna recipe

Final Thoughts

This Keto Tuna Avocado Bowl is fresh, filling, and full of flavor 🥑🐟✨. Save it to Pinterest, share with your low-carb crew, and enjoy a restaurant-style meal right at home!