Dill Cucumber Dressing: Whisk together all dressing ingredients until blended. Cover and refrigerate, if needed, until serving.
Pomegrante and Cucumber Salad: Mix together salad greens and mint. Divide and portion salad mix among 4 dinner plates, then drizzle on dressing. Garnish each salad with one-fourth of the cucumbers, onions and pomegranate seeds.
Scallops: Heat olive oil in large pan over medium heat. Pat scallops dry with paper towels; discard towels. Season scallops with salt. Sear scallops, about 2 minutes per side, just until opaque throughout. Place 3 to 4 scallops around each salad.