How to Make It
Cook asparagus in boiling water 3 minutes or until crisp-tender. Drain; rinse with cold water. Drain.
Combine dill and next 7 ingredients (through garlic) in a small bowl, stirring with a whisk. Divide lettuce, asparagus, and radishes evenly between 2 plates; drizzle each serving with about 2 1/2 tablespoons buttermilk mixture.