Lemon Arugula Pasta Salad

Pasta salad used to be the dish I’d grab from the deli counter when I was too tired to think about cooking. The kind with mayo and chunks of mystery vegetables that looked sad after sitting in the fridge for a day. I never thought of pasta salad as something you’d actually want to make from scratch. It felt like a side dish you tolerated at summer barbecues, not something you’d crave on a Tuesday night.

Then a friend brought a lemon and arugula pasta salad to a potluck last summer and I changed my mind completely. I went back for seconds, then thirds, and ended up asking for the recipe before I left. The peppery arugula, the zingy lemon, the crunch from the walnuts — it tasted nothing like the gloopy stuff I was used to.

The first time I made it at home, I didn’t chop the walnuts small enough. They sat in the bottom of the bowl while I tried to scoop them up with the pasta. Lesson learned. Now I chop them really fine, almost like crumbs, so they cling to the dressing and end up coating every piece of pasta.

One tip from me: rinse your cooked pasta under cold water before you toss it with the dressing. I skipped this step once because I was in a rush and the salad came out gummy and sticky. The starch on the pasta thickens the dressing into a paste. A quick rinse fixes everything. The smell when you grate fresh lemon zest into the dressing is so bright and fresh it makes the whole kitchen smell like summer.

Why You’ll Love This Recipe

Bright zingy flavor. The fresh lemon juice and white balsamic vinegar work together to wake up your taste buds. Every bite is fresh and zesty without being too sour.

Great crunchy texture. Finely chopped walnuts cling to every piece of pasta and add a nutty bite throughout. The capers pop in your mouth with little bursts of briny flavor.

Works year round. This salad feels just as right in the middle of winter as it does at a summer cookout. The bright citrus livens up gray days when you need something fresh.

Easy to make ahead. Prep the dressing and cook the pasta in advance, then toss everything together right before serving. This makes it perfect for entertaining without the last minute stress.

Ingredients You’ll Need

Pasta. Farfalle bowties work great because the dressing gets caught in all the little folds. Orzo is another good choice if you want smaller bite sized pieces.

Fresh arugula. Use the baby arugula from the salad section, not the wild peppery stuff. It wilts beautifully when tossed with the warm dressing.

Fresh lemon juice. Squeeze it from a real lemon. Bottled juice doesn’t have the same brightness and the salad just won’t taste right.

Walnuts. Chop them really fine, almost like a coarse meal. This is the secret to getting them to stick to the pasta instead of falling to the bottom of the bowl.

Parmesan cheese. Grate it fresh from a block for the best flavor. The pre shredded stuff in bags has anti caking powder that doesn’t blend smoothly.

Dijon mustard. This helps emulsify the dressing so it doesn’t separate. Use the smooth kind, not the whole grain version.

White balsamic vinegar. Pairs with the lemon juice to give the dressing extra depth. Red wine vinegar works fine if you can’t find white balsamic.

Capers. Drain them well before adding to the dressing. They add little salty briny bursts that play really nicely with the lemon.

Fresh basil. This is optional but adds a sweet herby note. Tear the leaves with your hands instead of chopping them so they don’t bruise.

Olive oil, salt, and pepper. Use a good quality olive oil since you can really taste it in the dressing. Sea salt and freshly cracked pepper finish things off.

How to Make Lemon Arugula Pasta Salad

Step 1: Cook the pasta

Boil a big pot of salted water and add the pasta. Cook it according to the package directions but pull it out a minute early so it stays al dente. Drain it in a colander and rinse with cold water to stop the cooking.

Step 2: Chop the walnuts

Place the walnuts on a cutting board and chop them as fine as you can get them. You want them almost like a coarse crumb. This helps them stick to the pasta later instead of sinking to the bottom.

Step 3: Mix the dressing base

Combine the lemon juice, white balsamic, drained capers, finely chopped walnuts, dijon, salt, and pepper in a large bowl. Give everything a good stir with a whisk until the dijon dissolves into the liquid.

Step 4: Whisk in the oil

Slowly drizzle the olive oil into the bowl while whisking constantly. This emulsifies the dressing so it doesn’t break or separate. Keep going until the mixture looks smooth and slightly thick.

Step 5: Add the parmesan

Stir the freshly grated parmesan into the dressing last. It thickens the dressing slightly and adds a salty depth. Don’t skip this step or the salad will taste flat.

Step 6: Toss in the pasta

Add the cooled rinsed pasta to the bowl with the dressing. Toss everything together until each piece of pasta is coated. The walnuts should cling to the pasta along with the dressing.

Step 7: Add the arugula

Pile the fresh arugula on top of the dressed pasta. It might look like too much at first but the leaves wilt down once they hit the dressing. Toss gently until the arugula is mixed throughout.

Step 8: Finish and serve

Tear fresh basil leaves over the top if you’re using them. Taste and add more salt or pepper if needed. Serve right away or chill for 30 minutes if you prefer it cold.

Expert Tips

Chop the walnuts until they’re almost like coarse breadcrumbs. Big chunks fall to the bottom of the bowl and you’ll miss out on that nutty crunch in every bite.

Rinse the cooked pasta with cold water before mixing it with the dressing. The starch on warm pasta thickens the dressing into a sticky paste.

Pile in more arugula than you think you need. The leaves shrink down significantly once they hit the dressing and warm pasta.

Use a large lightweight mixing bowl to toss everything together. A small bowl makes the arugula spill over the sides as you try to mix it in.

Make the dressing in the bottom of the serving bowl to save a dish. Just add the pasta and arugula right on top when you’re ready to combine.

What to Serve With This Recipe

Pair the pasta salad with grilled chicken cutlets or a simple piece of seared fish. Add a basket of crusty Italian bread on the side.

Serve the salad next to a platter of caprese with fresh mozzarella and tomatoes. Pour a glass of crisp white wine for guests.

Bring it to a barbecue alongside grilled sausages or burgers. Set out a bowl of olives and marinated artichokes for snacking before dinner.

How to Store

Move leftover pasta salad to an airtight container with a tight lid. Press a piece of plastic wrap directly onto the surface before sealing. This stops the arugula from wilting too quickly.

Keep the container on the middle shelf of your refrigerator. The salad tastes best within 24 hours because the arugula starts to wilt and the pasta soaks up the dressing.

Pull the container out 15 minutes before serving so the pasta isn’t ice cold. If the salad seems dry after sitting, drizzle a little extra olive oil and lemon juice on top and toss again.

Skip freezing this one. The arugula turns to mush and the pasta loses its texture once thawed. This salad is meant to be eaten fresh within a day or two of making it.

Recipe Variations and Add-ins

Swap arugula for baby spinach. Use the same amount of baby spinach in place of the arugula. The flavor is milder but you still get that fresh green crunch in every bite.

Try pumpkin seeds instead of walnuts. Use 3 tablespoons of finely chopped pumpkin or sunflower seeds in place of the walnuts. This makes the salad nut free without losing the texture.

Add 1 cup cherry tomatoes. Halve a cup of cherry or grape tomatoes and toss them in with the pasta. They add a sweet juicy pop that pairs really well with the lemon.

Mix in 1/2 cup grilled chicken. Slice up leftover grilled or rotisserie chicken and add it to the salad. This makes the dish a full meal instead of just a side.

Swap parmesan for crumbled feta. Use 1/3 cup of crumbled feta cheese in place of the parmesan. The salty tang of feta plays nicely with the lemon and arugula.

Top with toasted pine nuts. Sprinkle 2 tablespoons of toasted pine nuts over the top before serving. They add an extra layer of crunch and a buttery nutty flavor.