Mix in just enough blue cheese dressing to lightly coat the salad. Start with 1/4 cup dressing and taste as you go.
Pack 1/4 of the salad mixture tightly into a small round bowl. Invert it onto a salad plate and gently shake it out. Press together any stray pieces that fall apart.
Place 3 shrimp on top. Drizzle with a little more dressing, grind some pepper on top and serve.