Composed Tuna Salad

In a small bowl, whisk together vinegar, mustard, salt and pepper. Slowly drizzle in olive oil, whisking continuously, until mixture is evenly blended. Set aside.

Arrange lettuce over the bottom of a large serving platter. Break up tuna and place in the middle of lettuce. Arrange green beans, radishes, egg quarters and olives around tuna in a decorative fashion.

To serve, drizzle half of the dressing over the components of the salad. Serve remaining dressing on the side.