Start by making the salad dressing: simply add all dressing ingredients to a blender and blend until smooth.
In a large jar, add the dressing to in first (this is a trick if you’re meal prepping salads to ensure nothing gets soggy!).
Once you’ve prepped the rest of the salad ingredients, it’s time to layer them into the jar. Start with all 3 of the beans, then layer the veggies, walnuts, lettuce, and if using, pickled red onions.
Store in the fridge and when ready to eat - empty the jar into a bowl and enjoy a fresh, crisp salad!