If there’s one meal that has become a staple in my kitchen for its sheer simplicity and delicious flavor, it’s this Costco Pesto Pasta. I’ve found it’s the perfect solution for those hectic weeknights when I need something quick without sacrificing taste.

The creamy, rich flavor of the pesto coats the pasta beautifully, making it a dish my whole family looks forward to. It feels like a gourmet meal but honestly takes almost no effort to pull together. This recipe is my secret weapon for a satisfying and elegant dinner.

Ingredients

This simple recipe relies on quality ingredients to create a flavorful and satisfying meal. Here’s what you’ll need to get started.

1 lb pasta (rotini or penne) – The spiral shape of rotini or the ridges of penne are excellent for trapping the pesto sauce, ensuring every bite is full of flavor.
1 cup Costco Kirkland Signature Basil Pesto – This pesto is the star of the show, offering a bold and balanced flavor of basil, garlic, and Parmesan.
2 tablespoons olive oil – A good quality olive oil helps sauté the tomatoes and enriches the overall sauce.
1 cup cherry tomatoes, halved – These add a burst of sweetness and acidity that cuts through the richness of the pesto.
1/2 cup grated Parmesan cheese – For the best results, always grate your Parmesan fresh. It melts more smoothly and has a much better flavor than pre-shredded varieties.
1/4 cup toasted pine nuts (optional) – Toasting the pine nuts for a few minutes in a dry pan brings out their nutty aroma and adds a delightful crunch.
2 cups cooked chicken breast or rotisserie chicken (optional) – Adding chicken makes the dish more substantial and provides a great source of protein.
Salt and black pepper to taste – Seasoning is key, so adjust according to your preference.
Fresh basil leaves for garnish – A few fresh leaves on top add a beautiful aroma and a pop of color.

Note: The quantities above will yield approximately 6 servings.

Variations

One of the best things about this recipe is its flexibility. You can easily adapt it to suit different tastes or dietary needs with a few simple swaps.

Creamy Alfredo Pesto: For an even richer and more decadent sauce, stir in a few tablespoons of heavy cream or cream cheese along with the pesto. This creates a velvety texture that is pure comfort food.
Veggie-Packed Version: Boost the nutritional value by adding more vegetables. Sautéed zucchini, broccoli florets, or a handful of fresh spinach wilted into the sauce are all fantastic additions.
Spicy Pesto Pasta: If you enjoy a bit of heat, add a pinch of red pepper flakes or a drizzle of chili oil to the sauce. The spice provides a nice contrast to the creamy pesto.
Lemon and Herb Twist: Brighten up the dish with a squeeze of fresh lemon juice and some lemon zest. This adds a refreshing, fragrant note that complements the basil perfectly.
Vegan-Friendly Option: To make this recipe vegan, use a plant-based pesto that omits cheese (often made with nutritional yeast) and skip the Parmesan garnish. You can also use gluten-free pasta if needed.
Hearty Pesto Chicken Bake: Transform this pasta dish into a comforting casserole. Layer the prepared pesto pasta, shredded chicken, and mozzarella cheese in a baking dish and bake until the cheese is bubbly and golden.

Cooking Time

This recipe comes together quickly, making it ideal for a weeknight dinner.

Prep Time: 10 minutes
Cooking Time: 20 minutes
Total Time: 30 minutes

Equipment You Need

You don’t need any fancy gadgets to make this delicious pasta dish. Here are the basic kitchen tools you’ll want to have on hand.

Large pot: For boiling the pasta to the perfect al dente texture.
Colander: To easily drain the cooked pasta while reserving some pasta water.
Large skillet or sauté pan: For warming the sauce and combining all the ingredients together.
Wooden spoon or tongs: For stirring the sauce and tossing the pasta to ensure it’s evenly coated.
Measuring cups and spoons: To accurately measure your ingredients for consistent results.
Cheese grater: For grating fresh Parmesan cheese, which adds superior flavor and texture.

How to Make Costco Pesto Pasta Recipe

Making this dish is incredibly straightforward. Just follow these simple steps for a meal that is sure to impress.

Step 1: Cook the Pasta

First, bring a large pot of generously salted water to a rolling boil. Add your chosen pasta and cook it according to the package instructions until it is al dente, which means it should still have a slight bite. Before you drain the pasta, be sure to reserve about half a cup of the starchy pasta water for later use.

Step 2: Prepare the Sauce Base

While the pasta is cooking, heat the olive oil in a large skillet over medium heat. Add the halved cherry tomatoes and sauté them for about 3 to 4 minutes. You’ll know they’re ready when they begin to soften and release their sweet juices, which will form the foundation of your sauce.

Step 3: Warm the Pesto

Turn the heat down to low and add the Costco basil pesto to the skillet. Stir it gently to warm it through, but be careful not to let it boil, as high heat can diminish its vibrant green color and fresh flavor. Add a small splash of the reserved pasta water to help loosen the sauce and give it a silky, glossy finish.

Step 4: Combine Everything

Now, add the drained pasta directly into the skillet with the pesto sauce. If you are including cooked chicken, this is the perfect time to add it in so it can warm through. Toss everything together thoroughly until each piece of pasta is evenly coated in the delicious pesto sauce, then season with salt and freshly ground black pepper to taste.

Step 5: Finish and Serve

To finish the dish, sprinkle the freshly grated Parmesan cheese and the toasted pine nuts over the pasta. The cheese will melt slightly into the warm sauce, and the pine nuts will add a wonderful crunch. Garnish with a few fresh basil leaves for a final touch of color and aroma before serving immediately.

Additional Tips for Making this Recipe Better

Over the years, I’ve picked up a few tricks that take this simple recipe from great to absolutely perfect. Here are some of my personal tips.

I always make sure not to overcook the pasta. Cooking it just to al dente is key because it will continue to cook a little more when you toss it with the warm sauce, preventing it from becoming mushy.
Saving some of the pasta water is a non-negotiable step for me. That starchy water is liquid gold; it helps the pesto cling to the pasta and creates a much smoother, restaurant-quality sauce.
I learned early on to be gentle with the pesto. It should only be warmed, never boiled or fried. This preserves its bright, fresh basil flavor and vibrant green color that makes the dish so appealing.
Toasting the pine nuts is a small step that makes a huge difference. I just toss them in a dry pan for a couple of minutes until they are fragrant. It enhances their nutty flavor and adds a satisfying crunch that contrasts beautifully with the soft pasta.
Using freshly grated Parmesan cheese is another one of my must-dos. It melts so much better than the pre-packaged kind and gives the dish that authentic, savory flavor you want.

How to Serve Costco Pesto Pasta Recipe

This versatile dish can be served in a variety of ways, whether you’re aiming for a simple family dinner or a more elegant presentation. For a classic approach, serve the pasta warm in a large, shallow bowl to showcase its vibrant colors. A final sprinkle of Parmesan, a few fresh basil leaves, and a light drizzle of extra-virgin olive oil right before serving will make it look and smell incredible.

For a more complete meal, this pesto pasta pairs wonderfully with side dishes. Simple garlic bread or warm ciabatta slices are perfect for soaking up any extra sauce left on the plate. To add more substance, serve it alongside grilled chicken breasts, sautéed shrimp, or even a piece of baked salmon. A crisp, simple green salad with a light vinaigrette also provides a refreshing contrast to the richness of the pesto.

This dish also works beautifully as a cold pasta salad, making it a great option for picnics, potlucks, or meal-prepped lunches. Simply let the pasta cool and toss it with extra olive oil, cherry tomatoes, and perhaps some small mozzarella balls or feta cheese. It’s a refreshing and colorful dish that travels well and is always a crowd-pleaser.

Nutritional Information

Here is a general overview of the nutritional content for a single serving of this recipe.

Calories: Approximately 550-650 kcal (may vary with add-ins like chicken)
Protein: Around 20-30g
Carbohydrates: Approximately 60-70g
Fat: Approximately 25-35g

Make Ahead and Storage

Proper storage ensures you can enjoy this delicious pasta for days to come. Here’s how to store, freeze, and reheat it effectively.

Storing

To store leftovers, allow the pasta to cool down to room temperature completely. Transfer it to an airtight container and place it in the refrigerator, where it will stay fresh for up to three days.

Freezing

You can also freeze this pesto pasta for longer-term storage. Place it in a freezer-safe container, where it can be kept for up to one month. Keep in mind that the texture of the pasta may soften slightly upon thawing.

Reheating

To reheat, you can warm the pasta gently in a skillet over low heat. Add a splash of water or a little olive oil to help loosen the sauce and prevent it from drying out. Alternatively, you can microwave it in a covered dish, using a damp paper towel over the top to help retain moisture.

Why You’ll Love This Recipe

There are so many reasons to fall in love with this simple yet elegant pasta dish. Here are just a few of them.

Incredibly Easy to Prepare: This recipe comes together in about 30 minutes with minimal effort, making it the perfect choice for a quick and satisfying meal on a busy schedule.
Endlessly Versatile: You can easily customize it by adding your favorite protein like chicken or shrimp, or by loading it up with extra vegetables such as spinach, broccoli, or zucchini for a nutritional boost.
Packed with Flavor: The combination of savory basil pesto, sweet cherry tomatoes, and salty Parmesan cheese creates a complex and delicious flavor profile that feels both comforting and sophisticated.
Dietary-Friendly Options: This recipe can be easily adapted to fit various dietary needs. You can use whole wheat or gluten-free pasta, or opt for a vegan pesto to make it plant-based.
Great for Meal Prep: It tastes just as good served cold as a pasta salad, making it an excellent option for make-ahead lunches or easy picnic fare.

Costco Pesto Pasta Recipe

Ingredients

Variations

Cooking Time

Equipment You Need