In a bowl, whisk the vinegar, salt, pepper and Dijon mustard completely. Slowly add the Persian Lime Olive Oil whisking constantly until completely incorporated. Refrigerate for up to 5 days.
Arrange the greens on a serving plate, and add the tomato and onion. Place a scoop of shrimp on top of the salad, and garnish with the hardboiled egg. Chill until ready to serve.
When ready to serve: If necessary, shake or whisk the vinaigrette and pour 2 or 3 tablespoons over the shrimp and salad. Serve immediately.