The crisp texture of fresh cucumber meets the creamy richness of tuna salad in Tuna Cucumber Boats. It offers a refreshing twist on a classic snack. This simple recipe highlights the natural brightness of lemon and dill. It creates a light yet satisfying bite that’s perfect for warm days. With no cooking involved, it’s a go-to for effortless healthy eating.
I often whip these up for a quick lunch during busy workweeks. They come together in under 10 minutes. They’re great for meal prep too. They hold up well in the fridge for a day without losing their crunch. Friends and family rave about how these boats feel indulgent without any guilt. That makes them a staple for gatherings or solo treats.
Why You’ll Love This Recipe
- Quick No-Cook Prep: These Tuna Cucumber Boats assemble in just 10 minutes, ideal for hectic schedules.
- Crisp and Refreshing: The cool cucumber contrasts beautifully with creamy tuna for a light, satisfying crunch.
- Healthy Protein Boost: Packed with tuna and avocado, they offer a low-carb option full of nutrients.
- Versatile for Any Occasion: Enjoy as a snack, lunch, or party appetizer with easy customization.
- Simple Storage Friendly: Leftovers stay fresh in the fridge, perfect for meal prepping ahead.
Tuna Cucumber Boats Ingredients
These simple ingredients blend the mild earthiness of tuna and avocado with zesty lemon and dill for a balanced, creamy filling that pairs perfectly with cucumber’s freshness. Opting for high-quality, fresh components like ripe avocado and good tuna elevates the overall taste and texture.
- English cucumber: Forms the crisp, hydrating boat base that holds the filling securely.
- Skipjack tuna: Provides flaky protein and a subtle seafood flavor to the creamy salad.
- Ripe avocado: Adds smooth, buttery creaminess and healthy fats for richness.
- Avocado oil mayonnaise: Contributes a tangy, velvety base to bind the mixture.
- Dijon mustard: Brings a sharp, emulsifying bite to enhance overall flavor depth.
- Fresh lemon juice: Offers bright acidity to cut through richness and add freshness.
- Dried dill: Infuses a herbaceous, aromatic note that complements the seafood.
- Salt and black pepper: Seasons to taste, balancing flavors without overpowering.
- Red pepper flakes: Optional garnish for a subtle spicy kick and visual pop.
Note: The complete list of ingredients and exact measurements can be found in the printable recipe card at the bottom of the post.
How to Make Tuna Cucumber Boats
Step 1: Mash the Tuna and Avocado
In a small mixing bowl, combine the drained skipjack tuna and pitted ripe avocado, then mash them together with a fork until the avocado becomes smooth and fully incorporated into the tuna. This creates a creamy base for your healthy snack. Work quickly to keep the mixture fresh.
Step 2: Mix in Seasonings
Stir the avocado oil mayonnaise, Dijon mustard, fresh lemon juice, dried dill, salt, and black pepper into the mashed tuna mixture until everything blends into a uniform, creamy salad. Taste and adjust seasoning if needed for balance. The lemon juice adds a bright note to the low carb recipe.
Step 3: Prepare the Cucumber Boats
Wash the large English cucumber and slice it in half lengthwise, then use a small spoon to gently scrape out the seeds, forming hollow boat shapes. This step ensures the filling stays put without sogginess. Handle carefully to maintain the crisp texture.
Step 4: Fill and Garnish the Boats
Divide the tuna salad evenly among the cucumber halves, pressing it gently into the centers for a secure fit. Slice the boats into bite-sized pieces if you prefer easy appetizers, or serve as whole halves. Finish with a sprinkle of optional red pepper flakes for a mild kick that enhances the easy appetizer vibe.
Pro Tips for Success
- Drain Tuna Thoroughly: Press out excess liquid to avoid a watery tuna salad mixture.
- Choose Ripe Avocado: It mashes smoothly for the creamiest texture in minutes.
- Scrape Seeds Gently: This keeps the cucumber boats crisp without tearing the skin.
- Add Extra Crunch: Mix in diced celery or onions for more texture as desired.
- Garnish Lightly: A pinch of red pepper flakes adds subtle heat without overpowering.
How to Serve Tuna Cucumber Boats
Garnishes
I always finish my Tuna Cucumber Boats with a light sprinkle of red pepper flakes for a gentle spice that wakes up the flavors. Fresh chopped dill or a drizzle of extra lemon juice adds a bright, herbaceous touch. These simple garnishes keep things fresh and visually appealing without much effort.
Side Dishes
For a complete light meal, I pair these boats with a side of mixed greens or cherry tomatoes to echo the crisp cucumber vibe. Whole grain crackers or a small portion of quinoa salad provide a neutral base that lets the tuna shine. It’s an easy way to round out the plate for lunch.
Creative Ways to Present
I like arranging the boats on a wooden board with lemon wedges nearby for a party-ready display that feels elegant yet casual. For on-the-go, I slice them into rounds and secure with toothpicks for finger-friendly bites. This presentation makes Tuna Cucumber Boats fun for kids or guests alike.
Make Ahead and Storage
Storing Leftovers
I store assembled Tuna Cucumber Boats in an airtight container in the fridge to preserve their crispness, enjoying them within one day for the best taste. If separating, keep the filling and cucumber halves apart to avoid sogginess. This method works well for quick access during the week.
Freezing
Freezing isn’t ideal for the full Tuna Cucumber Boats due to the cucumber’s high water content, but I freeze the tuna salad mixture alone in a freezer-safe bag for up to a month. Thaw it overnight in the fridge before refilling fresh cucumbers. This keeps the creamy texture intact for later use.
Reheating
These boats are best served cold, so I rarely reheat them, but if needed, let them sit at room temperature for 10 minutes. For a quick warm-up, use the microwave on low for 20 seconds or the oven at 300 degrees for a few minutes, covering loosely to retain moisture. The filling stays creamy without drying out.
PrintHealthy Tuna Cucumber Boats for Lunch
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 10 minutes
- Yield: 2 servings
- Category: Appetizer
- Method: No Cook
- Cuisine: American
- Diet: Gluten Free
Description
A refreshing and healthy low-carb snack made with creamy tuna salad stuffed into crisp cucumber halves, perfect for a quick bite.
Ingredients
- 1 large English cucumber
- 1 can (5 oz) skipjack tuna, drained
- 1/2 ripe avocado, pitted
- 1 tablespoon avocado oil mayonnaise
- 2 teaspoons Dijon mustard
- 1 tablespoon fresh lemon juice
- 1/2 teaspoon dried dill
- Salt and black pepper to taste
- Optional: red pepper flakes for garnish
Instructions
- In a small mixing bowl, combine the drained tuna and the ripe avocado. Mash them together with a fork until the avocado is smooth and incorporated.
- Stir in the mayonnaise, mustard, lemon juice, dill, salt, and pepper until the salad is creamy.
- Wash the English cucumber and slice it in half lengthwise. Use a small spoon to gently scrape out the seeds, creating a hollow ‘boat’ shape.
- Divide the tuna mixture evenly among the cucumber halves, pressing it down into the hollowed centers.
- Slice the boats into bite-sized pieces if desired, or serve as whole halves. Garnish with a sprinkle of red pepper flakes for a little kick.
Notes
- This recipe is no-cook and ready in minutes, ideal for meal prep or parties.
- For extra crunch, add diced celery or onions to the tuna mixture.
- Store leftovers in the fridge for up to 1 day.












