5-Ingredient Keto Avocado Tuna Boats

These 5-Ingredient Keto Avocado Tuna Boats are a creamy, satisfying low-carb meal or snack ready in minutes. Flaky tuna is mixed with rich mayonnaise, bright lime juice, salt, and pepper, then scooped into ripe avocado halves for a tuna-salad-style bite without the bread or extra carbs. Each serving is packed with healthy fats, quality protein, and plenty of fiber, making it a perfect keto-friendly option when you need something fast, filling, and delicious.

Course Dinner, Lunch, Snack

Cuisine American, Keto

Keyword 5-ingredient, Avocado, gluten free, keto, low-carb, no cook, quick, tuna

Prep Time 10

Total Time 10

Servings servings

Calories 260kcal

Equipment

Mixing bowl
fork
spoon
Knife
Cutting board

Ingredients

For the avocado tuna boats

1 can tuna packed in water, drained about 5 ounces
3 tablespoons mayonnaise preferably avocado oil mayonnaise
1 tablespoon fresh lime juice plus more to taste
2 medium ripe avocados halved and pitted
1/4 teaspoon fine sea salt or to taste
1/8 teaspoon freshly ground black pepper or to taste

Instructions

Add the drained tuna to a mixing bowl and use a fork to break it into small flakes.
Stir in the mayonnaise and lime juice until the tuna is evenly coated and creamy.
Season the tuna mixture with salt and black pepper, then taste and adjust lime, salt, or pepper as desired.
Slice the avocados in half lengthwise, remove the pits, and gently scoop out a small amount of flesh to slightly widen the center wells if needed.
Spoon the tuna mixture evenly into the avocado halves, mounding it over the top.
Serve the avocado tuna boats immediately while the avocados are fresh and creamy.

Notes

For the best texture, choose avocados that yield slightly to gentle pressure without feeling mushy. If preparing ahead, mix the tuna, mayonnaise, lime juice, salt, and pepper up to 2 days in advance and store covered in the refrigerator, then cut and fill the avocados just before serving to avoid browning. For a different flavor profile, you can substitute lemon juice for lime juice using the same amount, keeping the recipe keto-friendly and bright.

Nutrition