Salads
This beet tuna salad recipe transforms a classic into something unexpectedly vibrant and sophisticated. The deep, earthy sweetness of roasted beets pairs perfectly with tender flaked tuna, creating a balance of textures and flavors that elevate a simple lunch into a showstopper.
What makes this dish special is how the natural sweetness of the beets complements the oceanic richness of the tuna without overpowering it.
The secret lies in the preparation: roasting the beets until tender and caramelized, then flaking the tuna just enough to maintain its natural texture. A bright citrus vinaigrette ties everything together, cutting through the richness while enhancing the natural flavors.
This isn't just a salad—it's a harmonious blend of bold ingredients that come together effortlessly.
When assembled, you’ll have a dish that’s as visually striking as it is delicious—deep ruby beets against flaky white tuna, all topped with a sprinkle of fresh herbs or toasted nuts for added crunch.
The presentation is just as important as the taste, making this perfect for meal prep or bringing to a potluck. Every bite delivers a perfect balance of sweet, tangy, and savory notes.
Ready in under 30 minutes, this beet tuna salad is ideal for weeknight lunches or as a light yet satisfying main course. The best part? It keeps well in the fridge, so you can prep it ahead and enjoy it all week long. Let’s get started!
Ingredients for beet tuna salad
Sweet roasted beets meet flaky tuna in this vibrant, restaurant-worthy salad.
| Ingredient | Amount | Notes |
|---|---|---|
| Medium Beets 🍠 | 2 whole | Roasted until tender, peeled |
| Canned Tuna in Water 🐟 | 1 can | High-quality, drained well |
| Red Onion 🧅 | ½ whole | Thinly sliced, white part only |
| Fresh Parsley 🌿 | ¼ cup | Chopped, for garnish |
| Extra-Virgin Olive Oil 🫒 | ½ cup | For roasting and dressing |
| Lemon Juice 🍋 | 3 tbsp | Freshly squeezed, bright flavor |
| Dijon Mustard 🍯 | 1 tbsp | For tangy depth |
| Honey 🍯 | 1 tbsp | For balancing sweetness |
| Salt 🧂 | ½ tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground |
| Walnuts 🥜 | ¼ cup | Toasted, chopped for crunch |
| Red Wine Vinegar 🍷 | 1 tbsp | For acidity balance |
| Garlic Cloves 🧄 | 2 cloves | Minced, for dressing |
| Creamy Avocado Oil Mayonnaise 🥑 | ¼ cup | For binding, vegan optional |
The beets are the star—look for small to medium ones at the grocery store, especially in late summer when they're sweeter. Whole Foods or Trader Joe's often have pre-washed organic beets, but regular grocery stores carry them too. Roast them until fork-tender; that caramelized sweetness is what makes this salad special. For the tuna, Wild Planet or Vital Choice brands are my go-to for quality. Drain it well and flake gently—you want those tender pieces, not mushy bits. The walnuts? Toast them first—it brings out their flavor and adds that perfect crunch.
No honey? Maple syrup works just as well—same sweetness, different depth. Short on Dijon? Yellow mustard at double the amount gets you close. The mayo can be swapped for Greek yogurt or vegan mayo if you prefer a lighter texture. Fresh herbs are ideal, but dried parsley at one-third the amount works in a pinch. The dressing is the magic—balance is key. Start with equal parts olive oil and lemon juice, then adjust the honey/vinegar ratio to taste. Too sweet? More vinegar. Too tart? A touch more honey.
This salad keeps beautifully for 4-5 days in the fridge—make extra for lunches. Store the dressing separately to keep everything crisp. The beets soften over time, so if they're getting mushy, toss them with a little more lemon juice to brighten them up. Walnuts stay crunchy for days if stored in an airtight container. For meal prep, portion into containers with the dressing on the side—just mix when ready to eat. The flavors actually get better the next day as everything melds together.
Why You'll Love This Recipe
- No-Cook Magic: I swear by this—just roast the beets ahead (or grab pre-cooked ones), flake the tuna, and toss with the rest. Zero chopping, zero fuss, and honestly? That earthy-sweet beet meets the briny tuna like it was meant to.
- Lunchbox Hero: Pack it in wraps for work or toss it into grain bowls—it’s my go-to when I need something hearty but light. Even my picky-eating friend devours it, and she’s judged my cooking before.
- Budget Brilliance: Canned tuna + pantry staples = a salad that won’t break the bank. The beets last forever if you roast a batch, and the leftovers? Just as good the next day—if they last that long.
Step-by-step instructions for beet tuna salad
This vibrant salad brings together earthy roasted beets and flaky tuna in a creamy, tangy dressing.
Roast the Beets Until Tender
Preheat your oven to 400°F. Wrap the 2 whole medium beets tightly in aluminum foil, then place them on a baking sheet. Roast for 45-50 minutes until completely tender when pierced with a fork. The beets should be soft enough to slice easily with a knife—no resistance at all.
While they roast, I like to turn them halfway through for even cooking. When done, let them cool slightly before peeling. The skins should slip off easily once cooled, revealing their deep ruby centers. Set aside to cool completely before chopping into ½-inch cubes—this makes them easier to mix into the salad later.
Prepare the Dressing Components
In a small bowl, whisk together the 0.25 cup creamy avocado oil mayonnaise, 3 tablespoons lemon juice, 1 tablespoon Dijon mustard, 1 tablespoon honey, 1 tablespoon red wine vinegar, 0.5 teaspoon salt, and 0.25 teaspoon black pepper. This dressing is the heart of the salad—don't skip the whisking! You want it completely smooth with no lumps.
In a separate small bowl, toast the 0.25 cup walnuts in a dry skillet over medium heat for 3-4 minutes until fragrant and lightly golden. Let them cool, then chop them coarsely—they'll add a delightful crunch to every bite. Keep them separate from the dressing until the very end.
Combine the Tuna and Dressing
Drain the 1 can tuna in water thoroughly, pressing gently on the fish with a paper towel to remove any excess moisture. In a large bowl, combine the tuna with the dressing mixture and mix gently but thoroughly. You want the tuna fully coated but not mashed—just enough to distribute the flavors evenly.
Add the 0.5 whole red onion, thinly sliced, and the 2 minced garlic cloves to the bowl. Mix again until the onion is evenly distributed. Here's where the magic happens—the tangy dressing and sweet onions balance the oceanic richness of the tuna perfectly. Taste as you go and adjust seasoning if needed.
Assemble and Garnish
Add the cubed roasted beets to the tuna mixture and fold gently to combine. The beets should be evenly distributed throughout the salad. If the mixture seems too thick, add a splash of water or a bit more lemon juice to loosen it slightly—it should be creamy but still easy to scoop.
Transfer the salad to a serving bowl and sprinkle the 0.25 cup chopped fresh parsley and toasted walnuts on top. The parsley adds a fresh finish, while the walnuts provide that satisfying crunch. Serve immediately for the best texture and flavor—this salad tastes best fresh from the bowl!
Chill and Serve (Optional)
For even better flavor, cover and refrigerate the salad for at least 30 minutes before serving. This allows the flavors to meld together beautifully. When ready to serve, give it a final stir to redistribute any settled ingredients. The beets will maintain their vibrant color, and the tuna will stay moist and flaky.
This beet tuna salad makes a fantastic lunch or light dinner. Pair it with crusty bread or a simple green salad for a complete meal. The combination of sweet beets, rich tuna, and creamy dressing creates a flavor profile that's both surprising and delightfully balanced!
Pro Tips For Making Beet Tuna Salad
- ROAST BEETS UNTIL SOFT: Boil them first, then roast at 400°F (200°C) for 45 minutes—this caramelizes the edges and makes slicing a breeze. I used to roast raw beets and ended up with uneven doneness; pre-cooking guarantees consistent texture.
- DRAIN TUNA WELL: Pat the drained tuna dry with paper towels and press it firmly to remove every last drop of water. Wet tuna turns your salad into a soggy mess, and nobody wants that—especially when you’ve gone through the effort of roasting those beets.
- SOAK ONION IN ICE WATER: Slice the red onion thin, then soak it in ice water for 10 minutes before draining. This mellows the sharp bite and keeps it crisp—no more tearing up while you eat, and the flavor stays bright instead of overpowering.
- MIX IN OIL LAST: Add the olive oil right before serving, not when you first combine everything. The beets’ natural sweetness and acidity from the onion will mellow over time, but the oil keeps them vibrant and prevents the salad from turning dull—like how a good dressing should lift, not weigh down.
Serving suggestions for this recipe
Bread Pairings
Crusty sourdough bread is my go-to pairing—its tangy crunch contrasts perfectly with the creamy salad. I like to toast slices until golden and serve them alongside for dipping. Baguette slices work too, especially if you brush them with garlic-infused olive oil before serving.
For a lighter option, water crackers or rye crisps add a satisfying crunch without overpowering the dish. 🥖
Cheese Additions
Add crumbled goat cheese or feta for a tangy, creamy element that balances the salad’s richness.
I like to sprinkle about ¼ cup of goat cheese just before serving—it melts slightly from the room temperature and adds a luxurious texture. Blue cheese crumbles also work beautifully, especially if you prefer a bolder flavor. Keep it to 2 tablespoons for a subtle touch.
Garnish Upgrades
Fresh microgreens or pepperoncini slices elevate the presentation and add a bright, crisp finish. I often sprinkle edible flowers like nasturtiums for a pop of color and subtle peppery flavor.
For a smoky note, drizzle with chipotle-infused olive oil just before serving. A pinch of flaky sea salt on top ties all the flavors together beautifully. ✨
Dinner Plate Pairings
Serve this salad alongside grilled asparagus or roasted Brussels sprouts for a complete meal. The earthy flavors of the beets complement the asparagus’s natural sweetness. For a lighter option, a simple arugula salad with lemon vinaigrette balances the richness.
If you’re feeling indulgent, add seared scallops or grilled shrimp to turn it into a full seafood feast. 🍽️
Meal Prep Containers
When packing for lunch, store the salad in glass meal prep containers with the dressing on the side. Add crispy fried shallots or toasted sesame seeds just before eating to keep everything fresh.
For extra crunch, include a small bag of pre-toasted walnuts on the side. This keeps the texture perfect even after a day in the fridge. 📦
Nutrition facts
Frequently asked questions
Can I use canned tuna in oil instead of water?
Yes, but you'll need to drain it very thoroughly and pat it dry with paper towels to remove excess oil. The oil can make the salad greasier, so if using oil-packed tuna, consider reducing the mayo in the dressing by 1 tablespoon to maintain the right balance. Always opt for high-quality brands with lower sodium content when possible.
How do I make this salad vegan?
Swap the tuna for marinated tofu or tempeh (press and cube first), and use vegan mayo instead of avocado oil mayo. For extra protein, add white beans or chickpeas. Keep all other ingredients the same—the roasted beets and dressing will still shine. The texture will be slightly different but equally satisfying!
Can I roast the beets ahead of time?
Roast them 1-2 days ahead and store peeled cubes in an airtight container in the fridge. They'll keep their color and sweetness for up to 5 days. Reheat gently in a skillet with a splash of water if they've lost some moisture. This makes prep even easier for busy weekdays!
Why does my beet tuna salad taste too sweet?
Too much honey or underripe beets can make the salad taste overly sweet. Balance it by adding 1 extra tablespoon of red wine vinegar or ½ teaspoon of Dijon mustard to the dressing. Also, check if your beets are fully roasted—they should be tender and slightly caramelized, not raw-tasting.
What's the best way to store leftovers?
Store in an airtight container with the dressing separated to keep everything fresh. The salad will stay good for 4-5 days in the fridge. If the beets get too soft, toss them with 1 teaspoon lemon juice before serving to brighten them up. Keep the walnuts in a separate small container to maintain their crunch.