Prepare Creamy Blue Dressing: In medium bowl, combine all ingredients. Cover and refrigerate until ready to serve.
Prepare Grilled Romaine Salad: Soak skewers in water 15 minutes. Preheat oven to 300°. Line rimmed baking pan with nonstick foil or parchment paper. Spread cheese in single layer on prepared baking pan and bake 5 to 6 minutes or until golden brown. L
In large nonstick skillet, cook bacon over medium heat 13 to 15 minutes or until crisp, turning occasionally. Transfer bacon to paper towels to drain. Let cool and crumble.
Prepare outdoor grill for direct grilling over medium-low heat. Place 5 shrimp on each skewer; sprinkle both sides with Cajun seasoning. Trim core from romaine and cut each head lengthwise in half through core. Brush cut sides of lettuce with oil; sprinkl
Oil grill rack. Place shrimp skewers and lettuce, cut side down, on hot grill rack. Cook shrimp 4 to 6 minutes or until shrimp turn opaque throughout and internal temperature reaches 145°, turning once halfway through cooking; cook lettuce 3 to 5 min
Place lettuce halves, cut side up, on each of 4 plates and insert 1 shrimp skewer into lettuce. Top with dressing, sprinkle with crumbled bacon, tomatoes, and onion, and garnish with cheese crisp to serve.