Peel cantaloupe and cut into bite-size pieces; arrange on lettuce leaves. Top cantaloupe with onion and crumbled bacon. Drizzle dressing over salad. Blender Poppy Seed Dressing: Combine all ingredients in container of electric blender; process on low speed for 30 seconds. Chill thoroughly; stir well before serving. Yield: 1-1/4 cups. SOURCE: Southern Living Magazine, August, 1979. Typed for you by Nancy Coleman.