Enjoy this seafood pasta salad in two variations: using traditional pasta or cauliflower - both are scrumptious! You'll love the combination of high-protein shrimp and crab with a crunchiness from fresh veggies and a tangy sweetness from the dressing! This salad becomes gluten-free, low-carb, and keto-friendly by substituting cauliflower and using our sugar-free French dressing.

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The backstory.
I've always had a soft spot for creamy seafood salads. They're the kind of recipe that shows up at summer gatherings, potlucks, and family get-togethers, and somehow there's never any left by the end of the meal. What I love about this version is that it's flexible. Some days I make it with pasta for that classic seafood pasta salad feel, and other times I swap in cauliflower when I want something a little lighter. Either way, it's creamy, refreshing, and packed with flavor.
xoxo Kori
It's a must-make.
This crab and shrimp salad gives you two delicious ways to enjoy it, making it easy to fit whatever you're craving.
- Versatile. Use traditional pasta shells for a classic seafood pasta salad or swap in cauliflower for a lighter version. I tested both, and honestly, they're equally delicious.
- Creamy, crunchy, and tangy. Tender shrimp and crab pair perfectly with crisp vegetables and a creamy dressing with just the right balance of tangy sweetness.
- High in protein. Shrimp and crab make this a satisfying salad that's perfect for lunch, dinner, or meal prep.
- Easy to make lighter. Use cauliflower and sugar-free French dressing for a gluten-free, low-carb version that's loaded with fresh flavor.
I love recipes that can pull double duty - perfect for a summer gathering and great for lunch the next day.
Let's talk texture and flavor.
Every bite of this seafood pasta salad has a little bit of everything. The shrimp and crab are tender and savory, while the celery, carrots, tomatoes, and green onions add fresh, crunchy texture. The creamy dressing brings a tangy sweetness that ties it all together, making this salad refreshing enough for summer but satisfying enough to enjoy year-round.
What you'll need.

Here's what your going to need to make this seafood pasta salad recipe.
- Pasta Shells or Cauliflower Florets: Choose your favorite version - classic pasta or a lighter cauliflower option.
- Celery: Adds fresh flavor and crunchy texture.
- Ripe Tomatoes: Bring a juicy pop of freshness.
- Carrot: Adds color, crunch, and subtle sweetness.
- Green Onion: Provides mild onion flavor without overpowering the seafood.
- Imitation Crabmeat: A classic addition that adds savory seafood flavor.
- Cooked Shrimp: Tender, high-protein, and delicious.
- Sour Cream: Adds richness and tang.
- Mayonnaise: Creates the creamy base for the dressing.
- Catalina French Dressing: Adds sweetness, color, and extra flavor.
- Kosher Salt or Sea Salt: Enhances all the flavors.
- Black Pepper: Adds a little seasoning and balance.
If you're a fan of creamy salads and easy summer lunches, there are a few other recipes you'll definitely want to try. This Grilled Shrimp Salad Recipe (Shrimp Louie Salad) is loaded with fresh vegetables and juicy grilled shrimp for a light yet satisfying meal. For something a little heartier, Creamy Tortellini Pasta Salad combines tender cheese-filled tortellini with a creamy dressing that's always a hit at potlucks and cookouts. And if you're anything like me and love a little tangy flavor in your pasta salads, The Best Dill Pickle Pasta Salad delivers plenty of crunch and pickle goodness in every bite.
Customize it your way.
This pasta salad with seafood recipe is easy to customize based on what you have or enjoy.
- Substitute lump crab meat for imitation crab.
- Add diced cucumber for extra crunch and freshness.
- Stir in chopped hard-boiled eggs for even more protein.
- Add fresh dill or parsley for a bright herbal finish.
- Use Thousand Island dressing instead of Catalina dressing for a sweeter variation.
- Toss in a handful of diced bell peppers for extra color and crunch.
Flexible dietary swaps.
One of the best things about seafood pasta salad is how easy it is to adapt to fit different dietary needs.
- Gluten-Free: Use cauliflower or your favorite gluten-free pasta.
- Lower-Carb: Replace the pasta with steamed cauliflower florets.
- Lower-Fat: Use light mayonnaise and light sour cream.
- Dairy-Free: Substitute your favorite dairy-free sour cream alternative.
- Lower-Sugar: Use a sugar-free French or Catalina dressing.
- Higher Protein: Add extra shrimp and crab while reducing the pasta or cauliflower slightly.
How to make this pasta salad with seafood recipe.
This seafood pasta salad comes together quickly and only gets better after chilling.
- Cook the pasta until tender, then drain and rinse under cold water. If using cauliflower, steam until crisp-tender and let cool.
- Add the pasta or cauliflower to a large bowl along with the celery, tomatoes, carrots, green onions, shrimp, and crab.
- Stir together the sour cream, mayonnaise, Catalina dressing, salt, and pepper until everything is evenly coated.
- Cover and refrigerate for at least 2 hours before serving. Give it a quick stir and adjust the seasoning if needed.

How to serve it.
Seafood pasta salad is right at home at summer cookouts, family dinners, and meal-prep lunches.
- Serve over crisp lettuce for a light lunch.
- Pair with grilled steak for an easy surf-and-turf meal.
- Add fresh melon on the side for a refreshing summer plate.
- Enjoy it as a light dinner all on its own.
- If you're serving the pasta version, add a warm dinner roll, breadstick, or biscuit alongside.
Kori's tips.
- Chill before serving. The flavors get even better after a couple of hours in the refrigerator.
- Keep the cauliflower crisp-tender. Overcooked cauliflower can become soft once mixed with the dressing.
- Taste before serving. Cold salads often need a little extra salt and pepper after chilling.
- Shortcut alert. Pre-cooked shrimp makes this recipe come together even faster.
- Make extra dressing. If you're using homemade sugar-free French dressing, save a little extra for salads and marinades later.
FAQs
Transfer leftover pasta salad to an air-tight container and store in the fridge for up to 3 days.
Use light or fat-free mayonnaise and sour cream.
If you make this with cauliflower and sugar-free Catalina french dressing, this shrimp and crab salad recipe is keto-friendly and has only 5.6 g net carbs in total, 12.3 grams of fat 9.4 g protein.
The carb content of seafood salad can vary quite a bit, but this recipe made with cauliflower and sugar-free french contains 7.3 g carbs, 1.6 g dietary fiber, and 5.6 g net carbs.
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📖 The recipe.

Creamy Seafood Pasta Salad Recipe (with Low Carb Option)
Ingredients
- 8 ounces dry pasta shells (uncooked medium or 8 oz cauliflower florets (uncooked 1" sized pieces)
- 2 stalks celery (sliced)
- ½ cup ripe tomatoes (½" cubes)
- ½ cup carrot (peeled and shredded)
- ½ cup green onion (sliced)
- 4 ounces imitation crabmeat
- 4 ounces shrimp (cooked, shelled, and deveined)
- ½ cup sour cream
- ½ cup mayonnaise
- ⅓ cup catalina french dressing
- ¼ teaspoon kosher salt or sea salt (plus extra to taste)
- ⅛ teaspoon pepper (plus extra to taste)
Instructions
- Pasta: Cook pasta according to package instructions. Drain and then rinse with cold water.Cauliflower: If using cauliflower, place in a microwave-safe dish with ¼ cup water, cover, and steam 3 minutes or until crisp-tender.

- In a large mixing bowl, add all ingredients. Stir until combined.

- Cover and refrigerate for a minimum of 2 hours. Adjust seasoning to taste after the flavors have had a chance to blend.
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