🦐 Best Seafood Pasta Salad
A creamy, flavorful seafood pasta salad loaded with shrimp, imitation crab, crunchy vegetables, and a tangy mayonnaise dressing. It’s perfect for summer gatherings, potlucks, barbecues, or a make-ahead lunch.
Servings: 8–10
Prep time: 20 minutes
Cook time: 10 minutes
Chilling time: 1–2 hours
Total: About 1½–2 hours
🛒 Ingredients
For the pasta salad
12 oz (340 g) rotini, bow-tie, or small shell pasta
1 lb (450 g) medium shrimp, peeled, deveined, and tails removed
8 oz (225 g) imitation crab meat, chopped
½ cup finely diced celery
½ cup diced red bell pepper
¼ cup finely diced red onion
½ cup sweet peas, thawed
¼ cup chopped fresh parsley
2 green onions, thinly sliced
For the creamy dressing
1 cup mayonnaise
½ cup sour cream
1 tablespoon fresh lemon juice
1 tablespoon Dijon mustard
1 teaspoon Old Bay seasoning
½ teaspoon garlic powder
½ teaspoon onion powder
½ teaspoon paprika
1 teaspoon sugar
½ teaspoon salt, or to taste
¼ teaspoon freshly ground black pepper
1–2 tablespoons pickle juice or sweet pickle relish — optional
1–2 tablespoons milk, if needed to thin the dressing
👩🍳 Step-by-Step Instructions
- Cook the pasta
Bring a large pot of generously salted water to a boil.
Add the pasta and cook according to the package directions until al dente. Avoid overcooking because soft pasta can become mushy after it absorbs the dressing.
Drain the pasta well and rinse briefly under cold water to stop the cooking process.
Transfer it to a large mixing bowl and allow it to cool.
Tip: Toss the cooled pasta with about 1 teaspoon of olive oil if you’re preparing it ahead of time. This helps prevent the noodles from sticking together.
- Cook the shrimp
Bring a small pot of water to a gentle boil.
Add the shrimp and cook for approximately 2–3 minutes, depending on size, until they turn pink and opaque.
Don’t overcook them—the shrimp should be firm and tender rather than rubbery.
Drain immediately and place the shrimp in a bowl of ice water for about 2 minutes. Drain again and pat dry.
Cut larger shrimp into bite-size pieces.
Alternative: You can sauté the shrimp in a little olive oil with a pinch of garlic and Old Bay seasoning for extra flavor.
- Prepare the vegetables
While the pasta and shrimp cool, prepare the vegetables.
Dice the:
Celery
Red bell pepper
Red onion
Slice the green onions and chop the parsley.
Make sure the vegetables are relatively small so you get a little of everything in each bite.
- Make the creamy dressing
In a medium bowl, combine:
Mayonnaise
Sour cream
Lemon juice
Dijon mustard
Old Bay
Garlic powder
Onion powder
Paprika
Sugar
Salt
Black pepper
Whisk until smooth and creamy.
Taste the dressing.
For a brighter flavor, add another teaspoon of lemon juice. For more seafood seasoning, add a little additional Old Bay.
If the dressing seems too thick, stir in 1 tablespoon of milk at a time until it reaches a creamy but pourable consistency.
- Combine the seafood
Place the cooled pasta in a large bowl.
Add:
Cooked shrimp
Chopped imitation crab
Celery
Bell pepper
Red onion
Peas
Green onions
Parsley
Gently toss everything together.
Be careful not to break up the crab too much.
- Add the dressing
Pour about ¾ of the dressing over the pasta mixture.
Use a large spatula to gently fold everything together until the pasta and seafood are evenly coated.
Don’t stir too aggressively because the shrimp and crab can break apart.
Reserve the remaining dressing.
- Chill
Cover the bowl and refrigerate for at least 1 hour.
For the best flavor, let it chill for 2–4 hours.
This gives the pasta time to absorb the dressing and allows the seafood and seasonings to blend together.
- Final adjustment before serving
After chilling, take the pasta salad out and stir gently.
The pasta may have absorbed some of the dressing.
If it looks dry, add the reserved dressing a tablespoon or two at a time.
Taste again and adjust with:
Lemon juice for brightness
Old Bay for more seafood flavor
Salt and pepper as needed
A little mayonnaise or sour cream for extra creaminess
Garnish with fresh parsley and a light sprinkle of Old Bay.
🦀 Optional Seafood Additions
For an even more impressive seafood pasta salad, add one or more of these:
Cooked lump crab meat
Lobster meat
Cooked scallops
Chopped cooked salmon
Clams
Small cooked bay scallops
If using additional seafood, make sure everything is fully cooked and cooled before mixing it into the salad.
🌶️ Easy Flavor Variations
Cajun Seafood Pasta Salad
Add:
1 teaspoon Cajun seasoning
¼ teaspoon cayenne
Diced green bell pepper
Spicy Seafood Pasta Salad
Add:
1–2 teaspoons hot sauce
¼ teaspoon cayenne
Finely diced jalapeño
Fresh Mediterranean Style
Replace the creamy dressing with olive oil, lemon juice, garlic, oregano, and parsley. Add cherry tomatoes and cucumber.
Extra-Creamy Version
Increase the mayonnaise to 1¼ cups and add 2 tablespoons of sour cream.
⭐ Tips for the Best Seafood Pasta Salad
Use al dente pasta.
It needs to remain firm after chilling.
Cool everything before combining.
Hot pasta can make the mayonnaise dressing oily and thin.
Don’t drown it in dressing immediately.
Start with about ¾ of the dressing and save some for the final adjustment.
Let it rest.
The flavor is noticeably better after at least an hour in the refrigerator.
Cut everything bite-size.
This makes it easier to get pasta, seafood, and vegetables in every forkful.
Add fresh herbs at the end.
Fresh parsley or dill gives the salad a much brighter flavor.
🧊 Storage
Keep the seafood pasta salad refrigerated in a covered container. For best quality, enjoy it within 2–3 days.
Because it contains seafood and a mayonnaise-based dressing, don’t leave it sitting at room temperature for extended periods. For parties or outdoor gatherings, keep the serving bowl chilled over ice.