
This seafood pasta salad brings the bright flavors of summer to your table any time of year, combining tender shrimp and delicate crab with crisp vegetables and a tangy dressing that ties everything together perfectly.
I first created this recipe for a beach picnic with friends, and it's become my go to dish whenever I need something that looks fancy but comes together quickly. The combination of seafood and zesty dressing never fails to impress, even among my pickiest eaters.
Ingredients
- Rotini pasta: Provides the perfect shape for trapping all the delicious dressing in its spirals
- Cooked shrimp: Adds a sweet, tender bite that makes this salad special
- Crab meat: Contributes a delicate oceanic flavor that elevates the entire dish
- Celery: Brings essential crunch and freshness to balance the seafood
- Cherry tomatoes: Offer bursts of juicy sweetness throughout each bite
- Red onion: Provides a gentle bite that becomes milder as the salad chills
- Mayonnaise: Creates the creamy base for our dressing without overpowering the seafood
- Fresh lemon juice: Brightens everything and complements the seafood beautifully
- Dijon mustard: Adds complexity and helps emulsify the dressing
- Fresh dill: Brings the distinctive herbal note that pairs perfectly with seafood
Step-by-Step Instructions
- Cook the Pasta:
- Bring a large pot of heavily salted water to a rolling boil before adding your pasta. Cook according to package directions until just al dente, typically 8 to 10 minutes. After draining, immediately rinse under cold running water while gently stirring to stop the cooking process and remove excess starch. Allow to drain thoroughly to prevent a watery salad.
- Prepare the Seafood:
- If using frozen seafood, ensure it's fully thawed and pat dry with paper towels to remove excess moisture. For fresh seafood, check carefully for any remaining shells in the crab meat. Cut larger shrimp into bite sized pieces to ensure you get seafood in every forkful.
- Combine Base Ingredients:
- In your largest mixing bowl, gently toss together the cooled pasta, prepared seafood, and all vegetables. Use a rubber spatula or wooden spoon to fold everything together without breaking up the delicate crab meat or crushing the tomatoes.
- Create the Dressing:
- In a separate medium bowl, whisk mayonnaise until smooth before adding lemon juice in a steady stream while continuing to whisk. Add Dijon mustard and seasonings, tasting as you go to achieve the perfect balance of creaminess and acidity.
- Final Assembly:
- Pour the dressing over the pasta mixture and add chopped fresh dill. Fold everything together with gentle, sweeping motions from the bottom of the bowl upward. Continue until all ingredients are evenly coated but take care not to overmix.

Fresh dill is truly the secret ingredient that transforms this from a good pasta salad to a memorable one. I discovered this when I once substituted dried dill in a pinch, and while still delicious, it lacked that distinctive brightness that makes everyone ask for the recipe.
Seafood Selection Tips
The quality of seafood makes all the difference in this pasta salad. Look for wild caught shrimp when possible, as they have superior flavor compared to farm raised varieties. If using frozen shrimp, buy them already peeled and deveined to save preparation time. For crab meat, lump or backfin varieties offer the best texture, though less expensive claw meat works well too. Always smell seafood before purchasing; it should have a clean, ocean scent without any strong fishy odor, which indicates freshness.
Make It Your Own
This recipe welcomes customization based on your preferences and what you have available. Try swapping lobster meat for a luxurious twist, or use imitation crab if you're on a budget. Add diced avocado just before serving for creamy richness, or include blanched asparagus pieces for extra color and nutrition. For a flavor boost, consider adding a tablespoon of Old Bay seasoning to the dressing or mixing in some capers for a briny punch. The basic formula stays the same, but these variations keep the recipe exciting each time you make it.

Serving Suggestions
Serve this seafood pasta salad slightly chilled but not ice cold to appreciate the full flavor profile. It pairs beautifully with grilled garlic bread or crusty sourdough for a complete meal. For a lovely presentation, serve in a wide, shallow bowl lined with butter lettuce leaves and garnish with additional fresh herbs and lemon wedges. This dish works wonderfully as a main course for lunch or a lighter dinner, but also shines as part of a buffet alongside grilled meats and other summer sides.
Storage Success
Store any leftover seafood pasta salad in an airtight container in the refrigerator for up to three days. The flavors will continue to develop, though the pasta may absorb some of the dressing. If making ahead for a special occasion, consider reserving a small portion of the dressing to refresh the salad just before serving. Never freeze this salad as the texture of both the pasta and vegetables will deteriorate significantly upon thawing.
Frequently Asked Questions
- → Can I use a different type of pasta?
Absolutely! Rotini, penne, or any short pasta will work well since they hold sauce and mix-ins effectively.
- → Can I substitute the shrimp or crab?
Yes, you can use other seafood like cooked scallops, lobster, or even canned tuna for variations.
- → How far in advance can I prepare this dish?
You can make it up to a day ahead. Just keep it chilled and toss again before serving for the best taste.
- → Can I make this dairy-free?
Yes, substitute the mayonnaise with a dairy-free alternative for a delicious dairy-free version of the dish.
- → What goes well with this pasta dish?
Pair it with a light green salad or crusty bread for a complete and satisfying meal.
- → How do I keep the seafood fresh?
Store seafood in the refrigerator until you’re ready to use it, and ensure it’s cooked properly before adding to the dish.