Every summer cookout in my family has a potato salad on the table, and for years mine was the classic heavy, all-mayonnaise kind that sat untouched next to the burgers. Then I started whisking Dijon and whole-grain mustard with fresh lemon juice into the dressing, and folding in green beans, black beans and eggs to make it a real meal — and this is now the bowl that comes home empty. The potatoes stay tender, the green beans keep their snap, and that creamy, tangy dressing pulls every bite together.
Why You’ll Love This Recipe
Tender potatoes and crisp green beans under a creamy, tangy Dijon dressing. Protein-rich eggs and black beans make it satisfying enough to stand on its own, while fresh herbs and crunchy red onion keep it bright. It is easy to prepare ahead, delicious served chilled or at room temperature, and perfect for picnics, potlucks, barbecues and family meals.
Creamy Dijon Potato & Green Bean Salad with Eggs and Black Beans
Ingredients
Method
- Cook the Potatoes: Wash the potatoes thoroughly and cut larger potatoes into evenly sized pieces, about 1 1/2 inches each. Small baby potatoes can be halved. Place the potatoes in a large saucepan and cover with cold water by about 1 inch. Add a generous pinch of salt. Bring to a boil over medium-high heat, then reduce to a gentle simmer. Cook for 10–15 minutes, or until the potatoes are tender when pierced with a fork but still hold their shape. Drain thoroughly and allow them to cool for about 10 minutes.
- Cook the Green Beans: Bring a medium saucepan of salted water to a boil. Add the green beans and cook for 3–4 minutes, until bright green and crisp-tender. Immediately transfer the green beans to a bowl of ice water to stop the cooking process. Let them cool for 2 minutes, then drain thoroughly and pat dry.
- Cook the Eggs: Place the eggs in a saucepan and cover with cold water by about 1 inch. Bring the water to a boil. Once boiling, cover the saucepan, remove it from the heat, and let the eggs stand for 10–12 minutes. Transfer the eggs immediately to a bowl of ice water and allow them to cool completely. Peel the eggs and cut each one in half lengthwise. Set aside until the salad is assembled.
- Prepare the Black Beans: Drain and rinse the black beans thoroughly under cold running water. Allow them to drain completely. Pat them gently with paper towels if necessary to remove excess moisture.
- Make the Creamy Dijon Dressing: In a small bowl, whisk together the mayonnaise, Dijon mustard, whole-grain mustard, lemon juice, olive oil, honey, grated garlic, salt, and black pepper. Whisk until smooth and creamy. Taste and adjust the seasoning if necessary.
- Assemble the Salad: Place the slightly cooled potatoes, green beans, black beans, and red onion in a large mixing bowl. Add about three-quarters of the Dijon dressing. Gently toss until all the ingredients are evenly coated, taking care not to break the potatoes. Add the parsley and chives and gently toss again. Add additional dressing as needed until the salad reaches the desired consistency.
- Add the Eggs: Transfer the salad to a large serving bowl. Arrange the hard-boiled egg halves over the salad. Finish with additional freshly ground black pepper, parsley, and a small amount of whole-grain mustard if desired.
- Chill and Serve: For the best flavor, refrigerate the salad for about 30 minutes before serving. Serve chilled or allow it to stand at room temperature for about 10 minutes before serving.
Tips from Chef Lea
I reach for baby Yukon Gold or baby red potatoes every time. Waxy potatoes hold their shape well after cooking and have a naturally creamy texture, so the salad never turns to mash when I toss it. Floury potatoes are for mashing — I keep them out of this bowl.
I start checking the potatoes a few minutes early, because fork-tender but still holding together is a narrow window. The moment a fork slides in with just a little resistance, I drain them. Overcooked potatoes fall apart the second the dressing hits them, and I have scraped out that sad, mushy batch more than once.
I blanch the green beans for just 3–4 minutes and move them straight into a bowl of ice water. That cold shock is the whole trick: it stops the cooking on the spot and keeps the beans bright green and snappy, even after they have sat in the dressing.
I rinse the black beans and then leave them sitting in the colander while I do everything else — and if I am in a hurry, I pat them dry with paper towels. Excess liquid thins the dressing and discolors the whole salad, and nobody wants a watery, streaky bowl.
I toss the potatoes with the dressing while they are still slightly warm. Warm potatoes drink in some of that lemony Dijon dressing instead of just wearing it, so the flavor goes all the way through rather than sitting on the surface.
I arrange the egg halves on top at the very end, after all the tossing is done. They stay intact, the yolks stay pretty, and the finished bowl looks like something from a deli case instead of a mixing bowl.
Variations
Lighter Dijon Potato Salad: Replace half of the mayonnaise with plain Greek yogurt for a lighter, tangier dressing.
Herb Potato Salad: Add fresh dill, basil, or tarragon along with the parsley and chives.
Extra-Crunchy Version: Add thinly sliced celery, diced cucumber, or chopped radishes.
Spicy Dijon Salad: Add a pinch of red pepper flakes or a small amount of hot sauce to the dressing.
No-Mayonnaise Version: Replace the mayonnaise with additional olive oil and Dijon mustard for a lighter vinaigrette-style salad.
What to Serve
This salad pairs well with grilled chicken, roasted chicken, baked salmon, grilled steak, sandwiches, burgers, or other barbecue favorites. It can also be served on its own as a satisfying light lunch.
Make Ahead & Storage
Make ahead: The potato, green bean, black bean and dressing mixture can be prepared up to one day ahead. Refrigerate it in an airtight container and add the egg halves before serving. The Dijon dressing on its own can be refrigerated in an airtight container for up to 3 days — just stir or whisk it again before using.
Storage: Store leftover salad in an airtight container in the refrigerator for up to 3 days. For the best presentation, store the hard-boiled egg halves separately and add them before serving. Freezing is not recommended because potatoes, green beans, eggs, and creamy dressing can develop undesirable textures after thawing.
FAQ
Can this salad be made ahead?
Yes. The potato, green bean, black bean, and dressing mixture can be prepared up to one day ahead. Refrigerate it in an airtight container and add the egg halves before serving.
Can canned black beans be used?
Yes. Canned black beans are ideal for this recipe. Drain and rinse them thoroughly before adding them to the salad.
Should potato salad be served warm or cold?
This salad is delicious chilled or at room temperature. Chilling it for about 30 minutes allows the flavors to develop.
Can regular potatoes be used instead of baby potatoes?
Yes. Yukon Gold or red potatoes can be cut into evenly sized pieces and cooked until just tender.
How do you prevent potato salad from becoming watery?
Drain the cooked potatoes, green beans, and black beans thoroughly before assembling the salad. Allow the potatoes to release excess steam for several minutes before adding the dressing.
Can the dressing be prepared ahead?
Yes. The Dijon dressing can be refrigerated in an airtight container for up to 3 days. Stir or whisk it again before using.
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Conclusion
Creamy Dijon Potato & Green Bean Salad with Eggs and Black Beans brings together tender potatoes, crisp green beans, hearty black beans, hard-boiled eggs, red onion, and fresh herbs in a tangy Dijon dressing. With contrasting textures and fresh, savory flavors, it makes a versatile salad for lunches, family dinners, picnics, and summer gatherings.
If you make this salad, I would love to hear about it! Follow Lea Recipes on Facebook and Pinterest, and find me on Instagram @lea_recipes1 / @learecipes. Leave a comment below with a star rating — it makes my day and helps other home cooks find the recipe.
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