Name: Avocado Tuna Salad Lettuce Boats
Prep time: 10 min
Total time: 10 min
Cuisine: American
Ingredients: 1 ripe avocado, peeled and pitted; 1 can (5 oz) tuna in water, drained; 2 tablespoons plain Greek yogurt; 1 tablespoon lemon juice; 1 celery stalk, finely chopped; 2 tablespoons red onion, finely chopped; 1 tablespoon chopped fresh parsley; Salt and pepper to taste; 1 head butter lettuce or romaine, leaves separated and rinsed

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Short description

A light and refreshing dish featuring creamy avocado and zesty tuna salad served in crisp lettuce leaves—a low-carb, protein-packed lunch or snack option that’s both satisfying and nourishing.

Why You’ll Love This Recipe

These lettuce boats are the perfect blend of texture and flavor. The creamy avocado pairs beautifully with the savory tuna, while the lettuce adds a fresh, crisp base. They’re quick to prepare, require no cooking, and offer a healthy, low-carb alternative to traditional sandwiches. Ideal for lunch, meal prep, or a wholesome snack, this recipe is both simple and delicious.

ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

canned tuna (drained)
ripe avocado
shallot or red onion
celery
radishes (optional)
capers or dill pickle relish
lemon or lime juice
fresh dill, parsley, or cilantro
spicy brown mustard or Dijon mustard
mayonnaise or olive oil mayo (optional)
lettuce leaves (romaine, butter, or bibb)
microgreens or additional herbs for garnish

directions

Drain the canned tuna and place it in a large mixing bowl.
Mash half of the avocado and mix it with the tuna until the texture is creamy.
Dice the remaining avocado into small cubes and gently fold it into the mixture.
Add finely chopped shallot or red onion, chopped celery, radishes if using, capers or relish, lemon or lime juice, herbs, mustard, and mayonnaise if desired. Stir until well combined.
Chill the mixture in the refrigerator for 30–60 minutes to allow the flavors to meld.
Scoop the tuna avocado salad into fresh, washed lettuce leaves. Garnish with microgreens or extra herbs and serve.

Servings and timing

Servings: 4–6 lettuce boats (serves approximately 2–3 people)
Prep time: 15 minutes
Chill time: 30–60 minutes
Total time: 45–75 minutes

Variations

Use butter lettuce or iceberg for a different texture.
Substitute Greek yogurt for mayonnaise for a lighter version.
Add chopped cherry tomatoes or cucumber for a refreshing twist.
Include diced jalapeños or hot sauce for added heat.
Serve the salad in a whole grain wrap or over greens instead of in lettuce boats.

storage/reheating

Storage: Store the tuna avocado mixture in an airtight container in the refrigerator for up to 3 days.
Reheating: This recipe is served cold and does not require reheating. For best results, assemble the lettuce boats just before serving to keep the lettuce crisp.

FAQs

What type of tuna works best for this recipe?

Chunk light or solid white tuna packed in water or oil both work well. Be sure to drain it thoroughly before mixing.

Can I prepare this recipe ahead of time?

Yes, the tuna avocado mixture can be made in advance and stored in the refrigerator. Add the lettuce just before serving.

How can I keep the avocado from browning?

Mixing the avocado with lemon or lime juice helps slow browning. Storing it in an airtight container also helps.

Is this recipe suitable for a keto diet?

Yes, it’s low in carbohydrates and high in healthy fats and protein, making it a good choice for keto diets.

Can I make this recipe without mayonnaise?

Absolutely. The mashed avocado provides enough creaminess on its own.

What lettuce varieties work best for boats?

Romaine, butter, or bibb lettuce are ideal as they provide sturdy, cup-like leaves.

Are there vegetarian alternatives to tuna?

You can substitute mashed chickpeas or white beans for a vegetarian version.

What can I serve with these lettuce boats?

Pair them with a side of fresh fruit, sliced veggies, or a light soup for a complete meal.

Can I use dried herbs instead of fresh?

Yes, but use them sparingly—typically one-third the amount of fresh herbs, as dried herbs are more concentrated.

Are radishes necessary?

No, radishes are optional and can be omitted or substituted with other crunchy vegetables like cucumber or bell pepper.

Conclusion

Avocado Tuna Salad Lettuce Boats are a wholesome, flavorful, and easy-to-make dish that suits a variety of dietary needs. With creamy avocado, savory tuna, and crisp lettuce, they offer a delightful combination of taste and nutrition. Perfect for quick lunches or meal prepping, this dish is sure to become a go-to favorite