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Speedy Low-Carb Tuna Lunch Bowl

4.4 stars, average of 42 ratings

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This speedy low-carb lunch bowl is the perfect balance of protein, healthy fats and is low in net carbs. Ready in just 15 minutes, it’s one of my favourite go to healthy gluten-free and keto-friendly meals. It's the ideal dish for those who practice intermittent fasting and only eat two nutritious meals a day.

I used quails eggs but feel free to substitute with 1 large egg per person if you prefer. You can also replace the fresh tuna with tinned if that’s all you have in the cupboards! This tuna salad is ideal to take to a BBQ or why not make it and pack in a Tupperware for a healthy work lunch?

I hope you enjoy it as much as I do. Let me know what you think in the comments below.

Hands-on Overall

Allergy information for Speedy Low-Carb Tuna Lunch Bowl

✔  Gluten free
✔  Dairy free
✔  Nightshade free
✔  Pork free
✔  Coconut free
✔  Shellfish free
✔  Beef free

Nutritional values (per serving)

Net carbs6.4 grams
Protein44.2 grams
Fat71.3 grams
Calories866 kcal
Calories from carbs 3%, protein 21%, fat 76%
Total carbs16.7 gramsFiber10.3 gramsSugars3.3 gramsSaturated fat13 gramsSodium573 mg(25% RDA)Magnesium141 mg(35% RDA)Potassium1,479 mg(74% EMR)

Ingredients (makes 1 serving)

  • 1 tuna steak (120 g/ 4.2 oz) - or use tinned, drained tuna
  • 1 tsp sesame seeds
  • pinch of sea salt
  • 1 tsp ghee, butter or virgin coconut oil
  • 1/2 avocado, sliced (100 g/ 3.5 oz)
  • 10 pitted black olives (30 g/ 1.1 oz)
  • 1 tbsp mayonnaise (15 g/ 0.5 oz) - you can make your own mayo
  • 1/2 medium cucumber, sliced (70 g/ 2.5 oz)
  • 6 quails eggs or 1 large egg
  • 1/4 small red onion, finely sliced (15 g/ 0.5 oz)
  • 10 walnut halves (20 g/ 0.7 oz)
  • 1 tbsp extra virgin olive oil (15 ml)
  • large handful of watercress (50 g/ 1.8 oz)


  1. Preheat the oven to 180 °C/ 355 °F (fan assisted) 200 °C/ 400 °F (conventional). Wash and dry the watercress.
  2. Place the walnuts on a baking tray and roast in the oven for 6-8 minutes until golden. Remove from the oven and allow to cool.
    Speedy Low-Carb Tuna Lunch Bowl
  3. Coat the tuna with sesame seeds, ghee and a pinch of salt. If using tinned tuna, simply sprinkle the sesame seeds over the salad in the end.
  4. Heat a griddle pan and fry the tuna to your liking - 1 1/2 minutes per side for pink, up to 3 minutes per side for well done. Remove from the heat and allow to cool slightly before slicing.
    Speedy Low-Carb Tuna Lunch Bowl
  5. Boil the quail eggs for 2-3 minutes (or about 10 minutes for large eggs). Plunge into cold water before peeling.
    Speedy Low-Carb Tuna Lunch Bowl
  6. Slice the rest of ingredients.
    Speedy Low-Carb Tuna Lunch Bowl
  7. Place the watercress in bowl and add olives, halved quail eggs, avocado, walnuts and drizzle with 1 tbsp of olive oil and top with 1 tbsp of mayonnaise. Optionally, garnish with ground black pepper.
    Speedy Low-Carb Tuna Lunch Bowl
  8. Tastes the best when served fresh, but can be stored in the fridge for 1 day.
    Speedy Low-Carb Tuna Lunch Bowl

Ingredient nutritional breakdown (per serving)

Net carbsProteinFatCalories
Tuna, yellowfin (fresh)
0 g29.3 g0.6 g131 kcal
Sesame seeds
0.3 g0.5 g1.5 g17 kcal
Salt, sea salt
0 g0 g0 g0 kcal
0 g0 g5 g45 kcal
Avocado, fresh
1.8 g2 g14.7 g161 kcal
Black olives
0.1 g0.4 g4.4 g45 kcal
0.1 g0.2 g12.5 g111 kcal
Cucumber, fresh
1 g0.4 g0.1 g8 kcal
Quail eggs
0.2 g7 g6 g85 kcal
Onion, red, fresh
1 g0.2 g0 g6 kcal
Walnuts, nuts
1.4 g3 g13 g131 kcal
Olive oil, extra virgin
0 g0 g13.5 g119 kcal
Watercress, fresh
0.4 g1.2 g0.1 g6 kcal
Total per serving
6.4 g44.2 g71.3 g866 kcal

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Jo Harding
Creator of

Jo Harding

Food is one of life’s most powerful medicines. I’m a true testament that once you find the right approach for you, you can overcome poor health through the healing power of food.

I believe the secret to radiant health starts and ends with a healthy gut so my recipes are all grain, gluten and refined sugar free. Most are also dairy-free.

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