This creamy green bean potato salad pairs tender new potatoes with crisp-tender green beans in a tangy mayo–Greek yogurt dressing. It’s the kind of side that travels well to potlucks, brightens a summer grill plate, and plays nice with weeknight proteins. If you want a quick technique for perfectly tender beans to speed things up, check this useful method here: quick green bean method.
Why you’ll love this dish
This salad strikes a balance between comfort and freshness. The potatoes add heft while the green beans contribute snap and color. The mayonnaise blended with Greek yogurt keeps the dressing creamy but not cloying, and a hit of Dijon gives it a little lift. It’s ideal for:
- Backyard barbecues that need a cool, make-ahead side.
- Weeknight meals when you want a vegetable-forward dish that still fills you up.
- Holiday spreads as a lighter complement to richer mains.
"A family favorite—simple ingredients, big flavor, and it actually tastes better the next day." — a regular at my summer dinners
How this recipe comes together
You’ll do three short cooking jobs: boil potatoes until fork-tender, blanch green beans for a bright color and crisp bite, and whisk together a quick mayonnaise–yogurt dressing. Once everything has cooled, fold the ingredients gently so the potatoes stay intact. Chill briefly to let flavors meld and finish with parsley for freshness.
What you’ll need
- Potatoes (small red or Yukon Gold work best; they hold shape)
- Fresh green beans, trimmed
- Mayonnaise
- Greek yogurt (plain, full-fat or 2% for creaminess)
- Dijon mustard
- Red onion, finely chopped
- Salt and freshly ground black pepper
- Fresh parsley, chopped for garnish
Notes and substitutions:
- Swap plain sour cream for Greek yogurt for a slightly tangier dressing.
- If you prefer, use a mix of mayonnaise and yogurt (about 2:1 mayo to yogurt) for richness without excess fat.
- For a dairy-free version, use a vegan mayo and omit yogurt.
Step-by-step instructions
- Prepare potatoes: Place whole small potatoes in a large pot and cover with salted water. Bring to a boil and cook until a fork slides in easily, about 12–15 minutes depending on size. Drain and let cool until you can handle them; cut larger ones into bite-size pieces.
- Blanch green beans: Bring a separate pot of salted water to a boil. Add trimmed green beans and cook about 3 minutes until bright and just tender. Immediately transfer to an ice water bath to stop cooking. Drain and pat dry.
- Make the dressing: In a bowl, whisk together mayonnaise, Greek yogurt, Dijon mustard, finely chopped red onion, salt, and pepper to taste. Taste and adjust seasoning—add a squeeze of lemon if you like extra brightness.
- Combine salad: In a large bowl, gently fold together cooled potatoes, blanched green beans, and the dressing. Mix carefully so potatoes don’t break up.
- Chill and finish: Refrigerate the salad for at least 30 minutes to let the flavors marry. Garnish with chopped fresh parsley just before serving.
How to plate and pair
Serve this salad chilled or at cool room temperature. Spoon it into a shallow bowl or mound it on a platter and sprinkle with additional parsley or a few lemon zest shavings for perfume. For pairings:
- Grilled chicken, pork chops, or salmon make a balanced plate.
- For a heartier barbecue or potluck pairing, serve it alongside warm links like my favorite crockpot kielbasa and green beans.
- Add a simple green salad or crusty bread to round out the meal.
Storage and reheating tips
- Refrigerate: Store in an airtight container. Kept cold, the salad stays fresh for 3–4 days.
- Freezing: I don’t recommend freezing this salad. Potatoes and the mayo-yogurt dressing change texture when frozen and thawed.
- Serving after storage: If the dressing tightens after refrigeration, let the salad sit at room temperature for 10–15 minutes and give it a gentle toss. If needed, stir in a tablespoon or two of yogurt or olive oil to loosen.
Pro chef tips
- Salt the cooking water: Season the potato and blanching water well. It’s the easiest way to add base seasoning.
- Keep an ice bath ready: Ice water secures bright color and perfect bite in the beans.
- Uniform pieces: Cut potatoes to similar sizes so every bite has balanced texture.
- Onion balance: Rinse finely chopped red onion under cold water if you want a milder onion flavor.
- Chill for best flavor: The dressing and vegetables develop a better flavor after 30–60 minutes in the fridge—plan ahead when possible.
Creative twists
- Mediterranean: Fold in halved cherry tomatoes, chopped Kalamata olives, and a splash of red wine vinegar. Finish with crumbled feta.
- Herby lemon: Replace parsley with dill and tarragon, and add lemon zest to the dressing.
- Bacon and egg: Stir in crisp bacon bits and halved hard-boiled eggs for a classic potato-salad feel.
- Vegan: Use vegan mayo and unsweetened plant-based yogurt; add a teaspoon of apple cider vinegar for tang.
Your questions answered
Q: Can I use frozen green beans?
A: Yes. If using frozen beans, blanch them briefly in boiling water per package directions, then plunge into ice water. Thawing and draining well prevents extra water from diluting the dressing.
Q: How far ahead can I make this salad?
A: Make it up to 24 hours in advance for best texture. The flavors improve, but after about 48 hours the potatoes start to absorb dressing and get softer.
Q: Can I omit mayonnaise entirely?
A: You can use all Greek yogurt for a lighter, tangier dressing. If you remove mayo, expect a less rich mouthfeel—add a teaspoon of olive oil to round it out.
Q: Is this safe to leave out at a picnic?
A: Keep mayo- or dairy-based salads out of the sun. Don’t leave them at room temperature for more than 2 hours (1 hour if above 90°F/32°C). Use a cooler or chill-serving bowl if the weather is warm.
Q: Any swaps for Dijon mustard?
A: Whole-grain mustard or even a mild yellow mustard can work, but Dijon has a smoother, more balanced sharpness that pairs especially well with yogurt.
If you want a printable version of these steps or a shopping checklist, let me know and I’ll format one for you.
Creamy Green Bean Potato Salad
Ingredients
For the salad
- 1 lb small red or Yukon Gold potatoes They hold shape well.
- 1 lb fresh green beans, trimmed Blanch for bright color and crisp bite.
- 1/2 cup mayonnaise Can be substituted with a mix of mayo and yogurt.
- 1/2 cup Greek yogurt Use plain, full-fat or 2% for creaminess.
- 1 tbsp Dijon mustard Adds a nice flavor lift.
- 1/4 cup red onion, finely chopped Rinse under cold water for milder flavor.
- to taste salt Salt the cooking water well.
- to taste freshly ground black pepper
- 1/4 cup fresh parsley, chopped For garnish.
Instructions
Preparation
- Place whole small potatoes in a large pot and cover with salted water. Bring to a boil and cook until fork-tender, about 12-15 minutes. Drain and let cool; cut larger ones into bite-size pieces.
- In a separate pot, bring salted water to a boil. Add trimmed green beans and cook for about 3 minutes until bright and just tender. Transfer to an ice water bath to stop cooking, then drain and pat dry.
- In a bowl, whisk together mayonnaise, Greek yogurt, Dijon mustard, chopped red onion, salt, and pepper to taste. Adjust seasoning with lemon juice if desired.
Assembly
- In a large bowl, gently fold together cooled potatoes, blanched green beans, and the dressing. Mix carefully so potatoes don’t break up.
- Refrigerate the salad for at least 30 minutes to let the flavors meld. Garnish with chopped fresh parsley just before serving.