Boil the Pasta: Fill a large pot with water, add a generous pinch of salt, and bring it to a boil. Add pasta and cook for 8-10 minutes until al dente. Drain and rinse under cold water.

Prepare the Shrimp: Peel and devein fresh shrimp, boil for 2-3 minutes until pink, or chop pre-cooked shrimp. Set aside.

Chop the Vegetables: Finely chop celery, red bell pepper, and red onion into small pieces and place in a large bowl.

Make the Creamy Dressing: In a bowl, whisk together mayonnaise, sour cream, Dijon mustard, lemon juice, Old Bay seasoning, salt, and pepper until smooth.

Combine Ingredients: In a large bowl, combine rinsed pasta, cooked shrimp, imitation crab, and chopped vegetables. Pour dressing over and mix gently.

Chill and Serve: Cover and refrigerate the salad for at least 1 hour before serving. Garnish with parsley and paprika before enjoying.