This is a no-cook-except-for-four-minutes salad: blanched green beans, oil-packed tuna, cherry tomatoes, and red onion tossed in a lemon-mustard-parsley dressing. The whole thing comes together in one large bowl and takes 25 minutes start to finish. If you need dinner on the table fast and don’t want to heat up the kitchen, this is a genuinely good option.
Why this recipe works
Two things make this salad actually work rather than just taste fine. First, the ice bath after blanching isn’t optional fussiness — it stops the green beans from going limp and dull, so they stay snappy and bright green by the time they hit the bowl. Four minutes in boiling salted water, then straight into ice water, and you’re done with heat entirely. Second, oil-packed tuna matters here. Water-packed tuna is drier and blander; the oil in oil-packed tuna carries flavor and keeps the fish from clumping. The dressing is built around lemon juice and Dijon, which cut through that richness without drowning it.
Mistakes to avoid
- Skipping the salt in the blanching water. Unsalted water produces flat-tasting beans no matter how good your dressing is. Salt the water until it tastes like mild broth.
- Not drying the beans before adding them to the bowl. Wet beans dilute the dressing and make the whole salad watery. After the ice bath, shake the colander well and pat the beans dry with a kitchen towel.
- Slicing the red onion too thick. Thick slices stay harsh and raw-tasting. Slice them as thin as you can — a mandoline is fastest, but a sharp knife works. If they still taste too sharp, rinse the slices under cold water for 30 seconds.
- Dressing the salad too far in advance. The lemon juice starts breaking down the beans and drawing water out of the tomatoes after about 30 minutes. Dress it right before serving, or keep the dressing separate if you’re prepping ahead.
- Using dried parsley. The dressing relies on fresh parsley for brightness. Dried parsley turns the dressing muddy and dull — skip the garnish of extra parsley on top instead, not worth the extra dish.
Keeping and reheating
Store leftovers in an airtight container in the fridge for up to 2 days. The beans will soften slightly and the tomatoes will release more liquid, so drain off any pooled liquid before eating and give it a quick toss. This salad doesn’t freeze — the vegetables turn mushy and the tuna texture suffers. There’s no reheating involved; serve it cold straight from the fridge, or let it sit at room temperature for 10 minutes if you prefer it less chilled. If the dressing tastes flat after storage, a small squeeze of fresh lemon juice brings it back.
Basque Tuna and Green Bean Salad
Equipment
- Large pot
- Large bowl
- Colander
- Mixing spoon
- Sharp knife
- Cutting board
Ingredients
For the Salad:
- 1 pound green beans trimmed and cut into 2-inch pieces
- 2 cups cherry tomatoes halved
- 2 cans tuna drained, packed in oil preferred
- 1 cup red onion finely sliced
For the Dressing:
- ¼ cup extra virgin olive oil
- 2 tablespoons lemon juice freshly squeezed
- 1 teaspoon Dijon mustard
- 1 clove garlic minced
- ¼ cup fresh parsley chopped
Instructions
- Bring a large pot of salted water to a boil over medium heat. Add the green beans and cook until they are tender-crisp, about 4 minutes. Drain in a colander and plunge into a bowl of ice water to halt the cooking process. Once cool, drain again.
- In a large bowl, combine the halved cherry tomatoes, drained tuna, and finely sliced red onion. Set aside.
- In a separate bowl, whisk together the extra virgin olive oil, freshly squeezed lemon juice, Dijon mustard, minced garlic, and chopped parsley. Season with salt and pepper to taste.
- Add the cooled green beans to the tomato and tuna mixture. Pour the dressing over the salad and gently toss to combine, ensuring all ingredients are nicely coated.
- Taste and adjust seasoning with additional salt and pepper if needed. Serve immediately or chill in the refrigerator for 10 minutes for a more refreshing experience.
Notes
- To elevate this dish, consider adding a sprinkle of smoked paprika for a touch of smokiness, or include olives or capers for added briny notes.
Nutrition
Common questions
Can I use canned tuna packed in water instead of oil?
You can, but the salad will be noticeably drier and less flavorful. If water-packed is all you have, drizzle an extra tablespoon of olive oil directly over the drained tuna before mixing it in.
Do the green beans have to be blanched, or can I use them raw?
Raw green beans work if you slice them very thin on a diagonal, but the texture is quite different — crunchy in a fibrous way rather than tender-crisp. Blanching takes only four minutes and makes the salad noticeably better.
Can I make this ahead for lunch the next day?
Yes, but store the dressing separately and combine everything in the morning. If you dress it the night before, the tomatoes get soggy and the beans lose their color by lunchtime.
What to cook next
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- Crispy Halloumi Panzanella Salad
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