1-First Step: Prepare Beans and Vegetables
Rinse and drain 1½ cups each of cooked chickpeas and kidney beans. Blanch fresh green beans in boiling salted water for 2 minutes, then transfer immediately to ice water to stop cooking and preserve crunch. Drain and pat dry. Thinly slice 2 celery ribs and ½ cup red onion. Finely chop ½ cup fresh parsley.

2-Second Step: Make the Dressing
In a large bowl, whisk together ¼ cup extra-virgin olive oil, ¼ cup apple cider vinegar, 2 grated garlic cloves, 1 teaspoon Dijon mustard, ½ teaspoon honey or maple syrup (adjust sweetness to taste), and 1 teaspoon sea salt until fully emulsified and smooth.

3-Third Step: Combine Salad Ingredients
Add the chickpeas, kidney beans, blanched green beans, sliced celery, red onion, and chopped parsley to the bowl with the vinaigrette. Toss gently but thoroughly to coat all the beans and vegetables evenly with the dressing.

4-Fourth Step: Chill and Allow Flavors to Meld
Cover the bowl with plastic wrap or transfer salad to an airtight container. Refrigerate for at least 1 hour before serving to allow the beans to absorb the flavors of the vinaigrette and for the ingredients to blend harmoniously.

5-Final Step: Serve and Enjoy
Serve the three bean salad chilled or at room temperature. It pairs beautifully with BBQ dishes, potluck spreads, or as a refreshing side salad for light meals. Adjust seasoning with extra salt or vinegar if needed before serving. For dietary variations, swap beans or adjust sweetener as desired.