Bring about an inch of salted water to a boil. Place the beans and asparagus in a steaming basket and set that over the boiling water. Cover and steam until tender to the bite, 3 to 5 minutes (depending on how crisp or tender you like them)
Put beans and asparagus in the steamer basket, set over the boiling water, cover, and steam until tender to the bite, 3 to 5 minutes (depending on how crisp or tender you like them)
Meanwhile, add all the ingredients for the dressing to your mini blender or food processor and blend until smooth and well combined. Set aside.
As soon as beans and asparagus are ready, plunge them in a bowl of icy cold water to stop the cooking, then drain and divide them between two serving plates
Top with tomatoes, then kalamata olives, feta cheese and finally, walnuts.
Sprinkle a few sprigs of dill over the salad for garnish.