Recipe

Pesto Pasta Salad

A bright, herby pasta salad with basil pesto, juicy tomatoes, creamy mozzarella, and a lemony finish that keeps it lively, not oily.

By Matt Campbell

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4.8

A large serving bowl of pesto pasta salad with cherry tomatoes, mozzarella pearls, and fresh basil on a light stone kitchen counter in natural window light

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Pesto pasta salad is my go-to when I need something that feels like summer in a bowl but still counts as real food. It’s cold, it’s fast, it’s wildly snackable, and it has that magical quality where you keep “just tasting” until you accidentally eat lunch standing at the counter.

This version is bright and balanced. We loosen the pesto with lemon and a little pasta water so it coats instead of clumping. We cool the pasta the right way so it doesn’t drink all the sauce. And we fold in tomatoes, mozzarella, and peppery arugula for that fresh bite that makes the whole thing feel awake.

Ingredients for pesto pasta salad laid out on a kitchen counter including pasta, basil pesto, cherry tomatoes, mozzarella pearls, lemon, arugula, parmesan, and olive oil

Why It Works

No greasy pesto. Lemon juice and reserved pasta water turn the pesto into a glossy dressing that clings to every noodle.
Flavor that holds up cold. A little extra salt, parmesan, and a pop of acidity keep it vibrant straight from the fridge.
Make-ahead friendly. The flavors meld after a chill, and you can refresh it in 30 seconds with a splash of water or olive oil.
Easy to customize. Add chicken, chickpeas, salami, roasted veggies, or whatever is hanging out in your fridge.

Pairs Well With

Storage Tips

Refrigerate: Store in an airtight container and keep refrigerated for 3 to 4 days. If you’re making it ahead for a party, consider folding in the arugula right before serving so it stays perky. For the best texture, you can also add the tomatoes closer to serving so they don’t weep.

Food safety note: Discard if it’s been left out at room temperature for more than 2 hours (or 1 hour if it’s very hot out).

Refresh before serving: Cold pasta tightens up. Toss leftovers with 1 to 2 teaspoons water (or a drizzle of olive oil) and a squeeze of lemon. Taste and add salt if needed.

Freezing: Not recommended. The texture of pesto and mozzarella turns weird after thawing, and the pasta gets soft.

Common Questions

How do I keep pesto pasta salad from drying out?

Two moves: reserve pasta water and slightly “over-dress” the pasta while it’s still barely warm. Then, when serving from the fridge, loosen with a splash of water and toss again. Cold pasta always needs a tiny wake-up.

Should I rinse the pasta?

For pasta salad, yes, a quick rinse under cool water is helpful. It stops the cooking and knocks off excess surface starch so the noodles don’t glue together. Just make sure you reserve the pasta water before draining, then rinse briefly, drain really well, and toss with a little olive oil so the pesto stays silky.

What pasta shape is best for pesto pasta salad?

Short shapes with ridges win. Think rotini, fusilli, farfalle, or penne. They grab pesto and hold onto the mix-ins so every bite has the good stuff.

Can I use store-bought pesto?

Absolutely. Choose one you actually like by the spoonful. Then brighten it with lemon juice and parmesan. That small upgrade makes store-bought taste way more “made it myself.”

Can I make it dairy-free?

Yes. Use a vegan pesto (or make pesto with nutritional yeast instead of parmesan) and swap mozzarella for avocado, toasted pine nuts, or white beans for creaminess.

Any allergen notes?

Pesto often contains nuts (like pine nuts or walnuts) and dairy (parmesan). If you’re cooking for allergies, check labels on store-bought pesto or make your own with safe swaps.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Large pot (for pasta)
Colander
Large mixing bowl
Measuring cups and spoons
Microplane or grater (for parmesan and lemon zest)
Cutting board and knife

I started making pesto pasta salad when I was in my “I swear I will meal prep this week” era. You know the one. I wanted something I could eat cold, pack easily, and not hate by day three. Pesto was the obvious answer, but early versions kept turning into a dry, clumpy situation by the next day.

The fix was simple: treat pesto like a dressing, not a paste. A little lemon, a little pasta water, and a big bowl toss makes it coat like a dream. Now this is the salad I bring to cookouts because it feels effortless, tastes loud, and somehow disappears faster than the chips.