I’ve always been a fan of seafood, but cooking it at home used to intimidate me until I discovered this incredible Costco Seafood Medley Recipe.

It takes all the guesswork out of selecting different shellfish, giving you a perfect blend right out of the bag.

I recently whipped this up for a quick weeknight dinner, and the rich, garlicky aroma instantly filled the kitchen.

It tasted like something I’d order at a nice coastal restaurant, yet it came together in just minutes. Trust me, if you want a fuss-free way to enjoy a gourmet meal at home, this is it.

Ingredients

Here are the fresh and flavorful ingredients you will need to bring this seafood feast to life. Using high-quality oil and fresh herbs really elevates the simple flavors of the seafood.

1 pound Peeled and Deveined Shrimp – Shrimp is the backbone of this medley. Opt for medium to large shrimp for a juicy bite, and ensure they are fully cleaned to save prep time.
1 pound Scallops – These add a sweet, tender richness to the dish. Dry them thoroughly with a paper towel before cooking to get a better sear.
1 pound Calamari Rings – Calamari provides a nice textural contrast with its slight chewiness. Avoid overcooking them, as they can become rubbery quickly.
4 cloves Garlic, diced – Fresh garlic is non-negotiable here for that aromatic punch. It infuses the oil and coats every piece of seafood with savory goodness.
¼ cup Extra Virgin Olive Oil – A good quality olive oil acts as the base for the sauce. It adds a fruity, peppery note that complements the delicate seafood flavors.
¼ cup Fresh Basil, diced – Fresh basil brings a sweet, peppery freshness that brightens up the heavy garlic flavors.
¼ cup Fresh Oregano, diced – This herb adds an earthy, slightly bitter undertone that balances the richness of the seafood.
¼ cup Fresh Parsley, diced – Parsley adds a clean, grassy finish and vibrant color. Flat-leaf parsley generally has better flavor for cooking than curly parsley.
Salt and Pepper to taste – Essential for bringing out the natural salinity and sweetness of the seafood mix.

Note: This recipe yields approximately 4 generous servings.

Variations

While this recipe is delicious as is, you can easily tweak it to fit your dietary needs or flavor preferences.

Spicy Kick: Add a teaspoon of red pepper flakes or a dash of cayenne pepper to the oil while sautéing the garlic for a spicy version.
Citrus Burst: Squeeze fresh lemon juice over the finished dish and grate some zest on top to cut through the richness of the olive oil.
Vegetable Boost: Toss in some cherry tomatoes, spinach, or bell peppers during the last few minutes of cooking for added color and nutrition.
Creamy Sauce: Stir in a tablespoon of butter or a splash of heavy cream at the end for a richer, more indulgent sauce consistency.

Cooking Time

This meal comes together incredibly fast, making it perfect for busy evenings.

Prep Time: 10 minutes
Cooking Time: 12 minutes
Total Time: 22 minutes

Equipment You Need

You don’t need a fully stocked chef’s kitchen for this recipe, just a few key tools.

Large Skillet with Lid – Essential for searing the seafood and then steaming it slightly to finish cooking evenly.
Spatula or Tongs – Used for gently tossing the delicate seafood so it cooks evenly without breaking apart.
Mixing Bowl – Needed to combine the fresh herbs and olive oil into a cohesive dressing before pouring over the seafood.

How to Make Costco Seafood Medley Recipe?

Creating this dish is all about timing and not overcooking the delicate seafood. The process is straightforward: you sear the aromatics, cook the seafood quickly, and finish with a fresh herb sauce. It’s a restaurant-quality technique that is surprisingly easy to master at home.

Step 1: Infuse the Oil

Start by placing your large skillet over medium-high heat. Pour in about 2 tablespoons of the olive oil and let it shimmer. Add the diced garlic cloves to the hot oil. Sauté them for about 1-2 minutes, stirring constantly. You want the garlic to turn a beautiful golden brown and become fragrant, but be careful not to burn it, as burnt garlic can make the entire dish taste bitter.

Step 2: Cook the Seafood

While the garlic is sizzling, quickly season your shrimp, scallops, and calamari rings with a pinch of salt and black pepper. Add this seafood mixture directly into the skillet with the garlic. Cook everything for about 5 to 7 minutes. You’ll know it’s ready when the shrimp turns pink and opaque, and the scallops become firm and white. Stir occasionally to ensure every piece gets consistent heat.

Step 3: Prepare the Herb Sauce

While the seafood is cooking, take a separate small bowl to create your finishing sauce. Combine the diced fresh basil, oregano, and parsley with the remaining olive oil. Whisk or stir this mixture well so the herbs are fully coated in the oil. This step helps release the essential oils in the herbs, maximizing their flavor before they hit the hot pan.

Step 4: Combine and Finish

Pour the herb and oil mixture directly over the cooked seafood in the skillet. Give everything a good stir to ensure every piece of shrimp, scallop, and calamari is coated in the vibrant green sauce. Let it cook for just another 2-3 minutes. This allows the flavors to meld together without overcooking the seafood. Serve immediately while it’s hot and fragrant.

Additional Tips for Making this Recipe Better

After making this a few times, I’ve found a few small adjustments that make a huge difference in the final taste.

I always make sure to pat the seafood completely dry with paper towels before adding it to the pan. If it’s wet, it will steam instead of sear, and you’ll miss out on that delicious golden color.
Personally, I love deglazing the pan with a splash of white wine right before adding the herb mixture. It picks up all the caramelized garlic bits from the bottom of the pan and adds a sophisticated depth of flavor.
Don’t walk away from the stove! Seafood cooks incredibly fast, especially calamari. I watch it like a hawk because the difference between tender and rubbery is often just one minute.

How to Serve Costco Seafood Medley Recipe?

This versatile dish pairs beautifully with a variety of sides to create a complete meal. For a classic dinner, serve it over a bed of fluffy white rice or al dente linguine pasta, which will soak up that delicious garlic-herb sauce. If you want a lighter option, pair it with roasted asparagus or a crisp green salad with a vinaigrette dressing. For presentation, garnish with extra fresh parsley sprigs and lemon wedges on the side. The bright yellow lemon against the green herbs and pink shrimp makes for a stunning visual contrast.

Nutritional Information

Here is a quick look at the nutritional value per serving, making it a healthy protein-packed option.

Calories: 280 kcal
Protein: 35g
Carbohydrates: 6g
Fat: 12g

Make Ahead and Storage

This dish is best enjoyed fresh, but leftovers can be saved if handled correctly.

To store, place any leftovers in an airtight container and keep them in the refrigerator. They will stay fresh for up to 3 days.

Freezing is possible but not recommended for the cooked dish as the texture of the seafood can change. If you must, freeze in a sealed container for up to 2 months.

To reheat, gently warm it in a skillet over low heat just until heated through. Avoid the microwave if possible, as it tends to make the calamari tough and rubbery.

Why You’ll Love This Recipe?

This seafood medley has quickly become a favorite in my rotation for several compelling reasons.

Effortless Elegance: It feels and tastes like a fancy meal you’d spend a lot of money on, yet it requires minimal effort and simple ingredients.
Incredibly Healthy: Packed with lean protein and healthy fats from olive oil, it’s a nutritious meal that doesn’t sacrifice flavor.
Fast Preparation: With a cook time of under 15 minutes, it is a lifesaver for busy weeknights when you still want a home-cooked meal.
Versatile Serving Options: Whether you want it low-carb with veggies or hearty with pasta, the base recipe adapts perfectly to whatever side dishes you have on hand.