Seafood Pasta Salad

This Seafood Pasta Salad is a showstopper for any gathering, whether it’s a potluck, a weekend BBQ, or your weekly meal prep. Picture tri-color rotini tossed with juicy, butter-seared shrimp, tender crab meat, crisp cucumber, sweet cherry tomatoes, and fresh green onions. All of that gets a bright, flavorful boost from a full bottle of Olive Garden Italian dressing, plus a sprinkle of Salad Supreme and Old Bay seasoning. The result? A cold pasta salad that’s vibrant, herbaceous, and just a little bit briny, perfect for serving a crowd and coming together in no time.

Think of this as the ultimate Seafood Pasta Salad that everyone will ask for seconds of: a giant pan of tri-color rotini mixed with buttery shrimp that’s pan-seared to perfection, flaky crab meat, crunchy cucumbers, sweet cherry tomatoes, and crisp green onions. The entire mix gets a lively kick from a full bottle of Olive Garden Italian dressing plus a touch of Salad Supreme or Old Bay seasoning. It’s a colorful and tasty blend of textures — firm pasta, succulent seafood, and fresh vegetables — all working together in perfect harmony.

This recipe shines at potlucks, backyard BBQs, or even as easy make-ahead lunches. Most ingredients come from the pantry or fridge, and the one-bottle dressing shortcut makes assembly a breeze. Toss it all together, chill it well, and you’ll often find it tastes even better the next day once the flavors have married.

Stick with me through the ingredients and easy steps below, and I’ll also share some pro tips for the best texture, creative mix-ins, smart substitutions, and confident storage ideas so you can prep ahead and feel great about it.

Why It’s Perfect for Gatherings

• Prepares a generous portion—ideal for feeding a crowd, family meals, or dividing up for several days of leftovers. For another crowd-friendly seafood main, try creamy baked seafood stuffed shells.
• Keeps things simple with easy steps and mostly pantry staples, plus a time-saving bottled dressing.
• Offers a fantastic combo of textures: chewy pasta, tender shrimp, flaky crab, and crunchy veggies.
• Super flexible—swap out dressings, seafood, or veggies to match your preferences or what’s in your fridge, or pivot to a one-pot shrimp and orzo pasta if you want a warm main instead.

Essential Ingredients and Amounts

• 2 boxes tri-color rotini pasta
• 3 bags large uncooked deveined shrimp
• 2 packs crab meat (fresh, lump, or imitation crab all work)
• 1 stick (8 tablespoons) butter, divided (for cooking shrimp and flavoring salad)
• 2 green onions (scallions), thinly sliced
• 2 packs cherry tomatoes (or about 3 cups halved cherry tomatoes)
• 1 cucumber, peeled, seeded, and diced
• 1 large bottle of Olive Garden Italian dressing (about 24 to 32 fluid ounces)
• Main seasonings: Salad Supreme, Old Bay, and Complete Seasoning (add to taste)
• Salt and freshly ground black pepper, to taste

How to Assemble and Cook

1. Bring a large pot of salted water to a boil.
2. Cook tri-color rotini until just al dente following package instructions.
3. Drain pasta and rinse with cold water to stop cooking; spread on a sheet pan or place in a large bowl to cool completely.
4. Pat shrimp and crab meat dry with paper towels.
5. Season shrimp generously with Salad Supreme, Old Bay, salt, and pepper.
6. Melt 1 stick (8 tablespoons) butter in a large skillet over medium heat.

7. Add shrimp to the skillet and cook until opaque and firm, about 2–4 minutes per side (or 145°F internal), then remove and set aside.

8. Optionally warm crab meat briefly in the same skillet and season lightly, or add cold crab directly to the salad.
9. In a large mixing bowl combine the cooled pasta, cooked shrimp, and crab meat; pour any reserved butter from the skillet into the bowl.
10. Add thinly sliced green onions, peeled and seeded diced cucumber, and halved cherry tomatoes.
11. Pour in Olive Garden Italian dressing (start with about three-quarters of the bottle) and gently toss to coat.
12. Taste and adjust seasoning with Salad Supreme, Old Bay or Complete Seasoning, salt, and pepper as needed.
13. Refrigerate the salad at least 30–60 minutes to let flavors meld, then taste again and adjust dressing or seasoning if desired.

Smart Tips for Perfect Results

• Cook your pasta until just al dente—soft yet still firm. Rinsing with cold water stops the cooking so your pasta won’t get mushy or soak up too much dressing.
• Always pat your shrimp and crab meat dry before seasoning. Moist seafood won’t hold the spices, and you want to avoid watering down your salad. The same tip helps you get a golden sear in Creamy Shrimp and Gnocchi with Garlic Parmesan.
• Add dressing a little at a time if you want to control how saucy the salad gets—you can always add more but you can’t take it out once mixed.
• Let the salad chill for at least 30 minutes so all those great flavors have time to blend and shine. Bonus: it often tastes even better the day after.
• Handle lump crab meat gently so you keep those beautiful big chunks intact. For another example of preserving texture, see Golden Pan-Seared Crab Cakes.
• Don’t freeze this salad since the seafood and fresh veggies will lose their texture and get mushy when thawed.

Flavor Variations and Swaps

• Trade out the Olive Garden dressing for your favorite homemade lemon-garlic vinaigrette or a creamy mayo-yogurt dressing for a richer texture. For inspiration, see a vinaigrette-based pasta salad like Feta & Cranberry Penne Salad with Orange Vinaigrette.
• Try different pasta shapes like penne or farfalle (bowtie)—smaller shapes tend to hold onto the dressing nicely.
• Mix in extra vegetables like diced bell peppers, sweet corn, chopped celery, or kalamata olives if you want a salty, briny flavor boost.
• Want some heat? Stir in cayenne pepper, pickled jalapeños, or a splash of hot sauce to kick things up a notch.
• Switch up the seafood by trying cooked scallops, diced cooked salmon, or if you’re in a pinch, canned tuna works too for a pantry-friendly twist.

Storage and Make-Ahead Advice

• Store your Seafood Pasta Salad in an airtight container in the fridge for best freshness. It’s best eaten within 2 to 3 days. Seafood salads are happiest fresh, but shrimp will keep safe up to 3 days if properly chilled.
• For longer meal prep, keep the dressing separate and toss just before serving—this keeps the salad from getting soggy and veggies crisp. The same trick works beautifully in a chilled Shrimp Orzo Salad with Lemon Vinaigrette.
• When ready to serve, take the salad out of the fridge about 10 to 15 minutes early or give it a gentle stir to bring it back to life. If you like a little warm shrimp, heat a portion separately and fold it in right before serving.
• Remember, don’t freeze this salad—it’ll ruin the seafood’s texture, veggies, and the overall dressing consistency.

Common Questions Answered

Q: Can I use frozen shrimp? A: Absolutely! Just be sure to thaw completely, pat dry well, and drain before seasoning and cooking. This helps get great searing and flavor. For a quick example of stovetop technique, see a creamy garlic butter shrimp skillet.

Q: Do I need to cook the crab meat? A: Most pre-packaged crab meat is already cooked and safe to eat cold. If you have raw crab, follow the package instructions or heat gently in the skillet and season to taste. Prefer it warm? Use pre-cooked crab in a creamy crab dip.

Q: How long will this pasta salad keep? A: When stored in an airtight container in the fridge, it’s best enjoyed within 2 to 3 days for quality and safety.

Q: Can I reduce the amount of dressing? A: Yes! Start with about three-quarters of the bottle, toss and taste, then add more if you want the salad to be extra saucy. This way, it won’t get soggy.

Q: What temperature should shrimp be cooked to? A: Shrimp should be cooked until fully opaque and firm. If you have a thermometer on hand, aim for an internal temp of 145°F (63°C).