A crisp, tangy salad featuring pickled green beans and onions tossed in a light olive oil dressing. Naturally low in carbs, rich in fiber, and ready in under three hours, this dish makes a healthy, satisfying side perfect for lunch, dinner, or meal prep.
Prepare the Green Beans and Onion: Begin by washing the green beans thoroughly under cold running water. Trim off the ends of each bean, ensuring all fibrous tips are removed for a tender bite. Slice the red onion as thinly as possible, creating delicate, almost translucent rings. Place the prepared green beans and sliced onion into a large, heatproof bowl, ensuring there’s enough space for the brine to fully cover them later.
Make the Brine: In a medium-sized pot, combine 2 ½ cups of water with 1 ½ cups of white wine vinegar. Add 2 tablespoons of granulated sugar, 1 ½ tablespoons of kosher salt, and 1 tablespoon of whole peppercorns. Place the pot over medium-high heat and bring the mixture to a rolling boil, stirring occasionally so the sugar and salt dissolve completely. Once it reaches a boil, immediately remove the pot from the heat to prevent over-reduction.
Pour the Brine Over Vegetables: Carefully pour the hot brine over the green beans and onions in the heatproof bowl. Make sure the liquid fully submerges all vegetables; they should be covered to allow for even pickling. Use a spoon to gently press down any vegetables that may float above the brine. This ensures every piece absorbs the flavor evenly.
Cool and Marinate: Allow the vegetables and brine to cool at room temperature for about 15–20 minutes. Once cooled, cover the bowl tightly with plastic wrap and transfer it to the refrigerator. Let the green beans and onions marinate for at least 2 hours, or for a more intense flavor, leave them overnight. The longer they sit, the more the tangy, savory flavors meld beautifully with the crisp vegetables.
Reserve Brine for Dressing: When you are ready to assemble the salad, carefully pour off the brine, reserving about 1 cup for the dressing. If desired, leave the peppercorns in the brine for a slightly spicy kick, or strain them out if you prefer a milder flavor. Drain the green beans and onions, then return them to the clean bowl.
Prepare the Dressing: In a small bowl or glass measuring cup, combine the reserved pickle brine with ⅓ cup of extra virgin olive oil. Add 2 teaspoons of Dijon or stone-ground mustard, if using, for an extra layer of tangy depth. Using a whisk or fork, vigorously emulsify the mixture until the oil and brine are fully combined and slightly thickened. Taste the dressing and adjust seasoning with salt and freshly cracked black pepper as needed.
Toss the Salad: Pour the prepared dressing over the drained green beans and onions. Using two spoons or salad tongs, gently toss the salad until every green bean and onion slice is coated evenly with the flavorful dressing. Be careful not to bruise the vegetables; a gentle folding motion works best.
Serve and Enjoy: Transfer the salad to a serving dish or individual plates. This salad can be served immediately, offering a crisp and tangy bite, or allowed to sit for an additional 15–30 minutes to let the flavors develop further. It pairs beautifully with grilled proteins, roasted vegetables, or as a refreshing side for a summer meal.
Storage for Later: Store any leftovers in an airtight container in the refrigerator for up to 5 days. Over time, the green beans will continue to soften slightly and absorb more of the briny, tangy flavor, making it even more delicious with each passing day.
Notes
Fresh, crisp green beans are essential for the perfect crunch—avoid overcooked beans.
Thinly sliced onions pick up the brine flavor faster and evenly.
The brine can be customized with herbs or spices like dill, garlic, or chili flakes for added complexity.
Use a heatproof bowl to prevent cracking or melting from the hot brine.
Mustard in the dressing is optional but adds a subtle tang that complements the pickled flavor.
Salad flavors develop over time; marinating overnight results in a more vibrant, well-rounded taste.
This recipe works well with thawed, drained frozen green beans if fresh ones aren’t available.