Keto Tuna Salad In Avocado Boat
Creamy, zesty tuna salad loaded into a perfectly ripe avocado half. This keto-friendly meal takes five minutes to throw together and tastes like a deli-style tuna melt without the bread. Crunchy celery, bright lemon, and fresh herbs keep every bite light yet satisfying.
For 4 servings
- prep
Drain the tuna and dice the vegetables.
1.Drain canned tuna thoroughly in a colander, pressing gently with a fork to remove excess liquid.2.Finely dice the celery stalks and red onion. Chop fresh dill.3.Halve the avocados lengthwise and remove the pits. Leave the skin on.TIPChoose avocados that yield slightly to thumb pressure — too soft and they won't hold the salad. - mix
Make the tuna salad.
1.In a medium bowl, flake the drained tuna with a fork until no large chunks remain.2.Add diced celery, red onion, mayonnaise, lemon juice, dijon mustard, salt, and black pepper.3.Mix well until everything is evenly coated and the salad is creamy.4.Fold in the chopped dill gently.TIPTaste and adjust lemon juice or salt here — the avocado boat adds richness that balances extra acidity. - assemble
Fill the avocado boats.
1.Scoop a generous mound of tuna salad into each avocado half, pressing gently into the cavity.2.Let the salad overflow slightly onto the cut surface for a generous look.3.Arrange filled avocado halves on a serving plate. - garnish
Garnish with extra dill and a crack of black pepper. Serve immediately.
What to keep in mind.
5 tips from the recipe — small details that make a real difference to the final dish.
- 1To keep the avocado from browning, brush the cut surface with extra lemon juice before filling.
- 2Chill the tuna salad for 10 minutes before assembling for a colder, more refreshing bite.
- 3Use a fork to gently flake the tuna, not mash it — you want texture, not paste.
- 4If you make the tuna salad ahead, store it in the fridge separately from the avocado halves.
- 5For extra crunch, reserve a tablespoon of diced celery to sprinkle on top after filling.
Adapt it for your goals.
Spicy
Add 1 tablespoon of sriracha or a finely chopped jalapeño to the tuna salad for a spicy kick that cuts through the richness.
high proteinHigh-protein
Mix in 1/4 cup of crumbled cooked bacon or chopped hard-boiled egg whites to boost the protein content without adding carbs.
dairy freeDairy-free
Swap traditional mayonnaise for a dairy-free, egg-free version made with avocado or coconut oil to keep it fully lactose-free.
greek styleGreek-style
Replace the dill with chopped fresh mint, add 1/4 cup of crumbled feta cheese, and use red wine vinegar instead of lemon juice for a Mediterranean twist.
no mayoNo-mayo
Replace mayonnaise with mashed half an avocado combined with 1 tablespoon of olive oil and a squeeze of lime for a lighter, whole-food dressing.
Why this is on our healthy list.
Rich in Healthy Fats
Avocados and avocado-oil mayonnaise provide monounsaturated fats that support heart health and help with nutrient absorption.
High-Quality Protein
Canned tuna is an excellent lean protein source, essential for muscle maintenance and repair.
Low in Net Carbs
With less than 5g net carbs per serving, this meal fits perfectly into a ketogenic or low-carb lifestyle.
Good Source of Fiber
Avocados and celery supply dietary fiber, aiding digestion and promoting a feeling of fullness.
Frequently asked questions
Select avocados that yield slightly to gentle thumb pressure but still feel firm — too soft will collapse when filled; too hard won't scoop easily.



