Make sure to rinse canned beans well to reduce sodium content and improve taste. Blanch fresh green beans quickly to keep them crisp and vibrant in color. Adjust the sweetness of the dressing to your preference. For less onion flavor, soak diced onion in cold water for 10 minutes before adding. Use a glass or ceramic bowl to toss the salad to avoid metallic taste. Allow the salad to chill several hours or overnight for best flavor. Variations include adding chickpeas, black beans, different herbs, crunchy veggies, spices, creamy dressings, or nuts for added texture and flavor. Store leftovers in an airtight container in the refrigerator for up to 3-4 days.