While lotus stems may be abundant in Southeast Asia, they are quite uncommon in the U.S. When in season, asparagus makes a tasty substitute. String beans may be more available and work equally well. This is an easy and flavorful salad that can be made ahead. Serves 4-5 Ingredients 1 large cucumber, peeled and cut into 1 1/2-inch lengths 1 ½ cups water ½ teaspoon salt 1 pound asparagus, trimmed and cut into 1 1/2-inch lengths 3 shallots or 1/2 purple onion, cut into half