Seafood pasta salad is ideal as a light main or a crowd-pleasing side throughout the summer. Packed with sweet crab, tender shrimp, crisp vegetables, and a creamy, zesty dressing, this pasta salad is easy to make in large batches and perfect for picnics, potlucks, or weeknight dinners.
We love seafood at our house, but serving it on its own can get costly—especially with a big appetite to feed. Stretching seafood with pasta and plenty of vegetables makes a satisfying, budget-friendly dish that still highlights the flavors of crab and shrimp. This recipe is written to make a large batch so you can feed a crowd, but it’s simple to halve when you need a smaller portion.
Ingredients
What you’ll need:
- Pasta – Rotini works particularly well because the spirals hold the dressing. Penne or similar short pasta is fine too. Cook according to package directions, drain, and rinse under cold water to cool.
- Vegetables – Diced, seeded bell peppers, sliced green onions, and halved grape tomatoes add color, crunch, and freshness.
- Lump crab meat – One container, drained. For a more economical option, replace some or all of the lump crab with imitation crab.
- Imitation crab meat – Finely chopped and flaked apart so there are no large chunks (optional).
- Frozen salad shrimp – Small shrimp work best here. Thaw and drain before adding.
- Ranch dressing mix – Adds familiar, savory flavor. Use your preferred brand; Hidden Valley works well if you want the exact profile in the original recipe.
- Zesty Italian dressing – Provides acidity and herbs to balance the mayo.
- Mayonnaise – Use regular mayonnaise for the creamiest texture and the fullest flavor.
How to make the salad
This recipe is straightforward and fast to assemble:
- Combine the cooked, cooled pasta, diced peppers, sliced green onions, halved grape tomatoes, drained lump crab, flaked imitation crab (if using), and thawed shrimp in a very large bowl.
- In a separate bowl, whisk together the mayonnaise, ranch dressing mix, and zesty Italian dressing to create the dressing.
- Pour the dressing over the pasta mixture and stir thoroughly until everything is evenly coated.
- Cover and chill for about 2 hours to let flavors meld. Stir again before serving.
Make-ahead tips
You can prepare this salad ahead of time. Whisk the dressing ingredients separately, then toss about two-thirds of the dressing with the salad and refrigerate. Hold the remaining dressing and add it right before serving so the salad stays creamy and fresh.
Storage
Store leftovers in an airtight container in the refrigerator for up to 48 hours. If the salad loses creaminess, add a little extra mayonnaise or reserved dressing and stir to refresh the texture.
Tips and variations
- This is written as a large-batch recipe to feed a group; halving the quantities works well for smaller gatherings.
- Omit imitation crab if you prefer, or use it exclusively to lower the cost while keeping the crab flavor.
- Add other mix-ins you enjoy—celery, cucumber, or chopped fresh herbs like parsley or dill pair nicely with seafood.
- For a lighter version, swap some mayo for plain Greek yogurt, but expect a tangier profile.
Other pasta salad ideas
If you enjoy this seafood pasta salad, try other flavor-packed pasta salads like spinach dip pasta salad, pasta salad with pepperoni, buffalo chicken pasta salad, southwestern chicken pasta salad, Cajun macaroni salad, or a ranch BLT pasta salad. These variations show how versatile pasta salads can be for entertaining or meal prep.
If you make this seafood pasta salad, leave a note about how it turned out—we love hearing feedback from readers.
Seafood Pasta Salad
Ingredients
- 2 lbs rotini pasta, cooked, drained, and rinsed under cold water until cooled
- 2 peppers (red, yellow, or orange), seeded and diced
- 1 bunch green onions, thinly sliced
- 2 cups grape tomatoes, halved lengthwise
- 1 (16 oz) container lump crab meat, drained
- 1/2 cup imitation crab meat, chopped and flaked apart (optional)
- 2 packets ranch dressing mix
- 1/2 cup zesty Italian dressing
- 2 1/3 cups mayonnaise
- 1 (12 oz) bag frozen salad shrimp, thawed and drained
Instructions
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Add all ingredients to a very large mixing bowl.
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Whisk together mayonnaise, ranch seasoning, and Italian dressing; pour over the salad and stir until evenly combined.
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Cover and chill for 2 hours to allow flavors to meld.
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Stir again, serve, and enjoy!
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