Radiatori Pasta Salad

A vibrant, crowd-pleasing radiatori pasta salad packed with crisp vegetables, fresh herbs, and a zesty vinaigrette that clings perfectly to every single ruffle.

Why This Recipe Works:

• The ruffled shape of radiatori pasta acts like tiny shelves, holding onto the dressing and finely chopped ingredients instead of letting them pool at the bottom.
• Shocking the pasta in ice water halts the cooking process instantly, preserving that essential al dente bite even after a day in the fridge.
• Emulsifying the vinaigrette with a touch of Dijon mustard ensures the oil and acid stay bonded, preventing greasy separation.

I still remember the humid July afternoon three years ago when my sister's backyard baby shower was nearly ruined by a bowl of mushy, lukewarm macaroni.

I stood by the buffet table, tapping my metal tongs against my hip in sheer frustration as I watched the heavy mayonnaise dressing separate into an oily puddle under the sun.

Most pasta salads fail because people treat the pasta like an afterthought, boiling it until it is bloated and then tossing it with a dressing that either slides right off or gets completely absorbed into a dry, pasty mess. When you overcook pasta, the protein matrix collapses, leaving you with a mushy texture that cannot stand up to acidic dressings.

It is a tragedy.

Bear with me here, because the science is actually fascinating: the ruffles of the radiatori shape act like tiny shelves that trap oil-soluble flavor compounds.

You probably already have most of these ingredients in your pantry right now, meaning you can whip this up without making an extra trip to the grocery store.

Let's do this.

Radiatori Pasta Salad

• Publisher Storied Skillet
• Cuisine American
• Category Salad, Side Dish
• Prep Time 15 minutes
• Cook Time 10 minutes
• Servings 8
• Calories 290 calories
• Rating 4.8 5593
• Tags radiatori pasta salad, cold pasta salad, summer side dish, easy pasta salad

Ingredients

• 1 pound (454g) radiatori pasta
• 1 tablespoon Diamond Crystal kosher salt (for pasta water)
• 1 cup cherry tomatoes, halved
• 1 cup English cucumber, diced
• 1/2 cup kalamata olives, pitted and halved
• 1/2 cup red onion, finely diced
• 1/2 cup crumbled feta cheese
• 1/4 cup fresh Italian flat-leaf parsley, chopped
• 1/2 cup extra virgin olive oil
• 3 tablespoons red wine vinegar
• 1 clove garlic, grated
• 1 teaspoon Dijon mustard
• 1/2 teaspoon dried oregano
• 1/2 teaspoon Diamond Crystal kosher salt (for dressing)
• 1/4 teaspoon freshly cracked black pepper

Directions

1. Bring a large pot of water to a rolling boil and season generously with 1 tablespoon of Diamond Crystal kosher salt.
2. Add the radiatori pasta and cook for exactly 9 minutes, or until just al dente, stirring occasionally to prevent sticking.
3. Drain the pasta immediately and shock it in a bowl of ice water to halt the cooking process, then drain thoroughly again.
4. In a small bowl or jar, whisk together the olive oil, red wine vinegar, grated garlic, Dijon mustard, dried oregano, salt, and black pepper until fully emulsified.
5. In a large mixing bowl, combine the cooled pasta, cherry tomatoes, diced cucumber, kalamata olives, red onion, and crumbled feta.
6. Pour the dressing over the salad and toss gently with a rubber spatula until every ruffle of the radiatori is coated, then garnish with fresh parsley.
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Notes

• I highly recommend using Diamond Crystal kosher salt; if you are using Morton's kosher salt, cut the volume by half (use 1/2 tablespoon for the pasta water) to avoid over-salting.
• Rinsing pasta is usually a culinary sin, but for cold salads, shocking it in ice water washes away excess surface starch that would otherwise turn the dressing gummy as it cools.
• Do not let your cooked pasta sit in the colander dry while you prep veggies; it will stick together into a giant, unusable brick. Prep your vegetables first so they are ready to go.
• After a day in the fridge, the pasta will absorb some of the dressing. Keep a splash of olive oil or extra vinegar on hand to revive the salad's glossy texture before serving.
• If you cannot find radiatori, you can substitute other highly textured shapes like fusilli or campanelle, but avoid smooth shapes like penne which let the dressing slide right off.

Serving Suggestions

This versatile salad makes the ultimate side dish for warm-weather gatherings, backyard barbecues, or simple weeknight dinners. Here are a few of my favorite ways to plate and pair it to make your meal complete:

• Serve it alongside grilled chicken breasts or garlic butter shrimp skewers for a complete, protein-packed summer dinner.
• Pair it with a colorful alternative like our Tri Colored Rotini Pasta Salad to give your guests multiple options at a buffet.
• If you prefer a creamier profile for your spread, offer this alongside our classic Creamy Italian Pasta Salad.
• For a brighter, citrus-forward option on the table, serve it next to a bowl of Lemon Arugula Pasta Salad.
• Add a side of crunchy, tangy Easy Homemade Dill Pickles to contrast the rich feta cheese.
• Spoon it into wide, shallow bowls and top with a few grinds of fresh black pepper and a lemon wedge for an elegant lunch presentation.

Storage and Reheating

Store this salad in an airtight glass container.

Plastic containers tend to absorb the garlic and onion oils, leaving a stubborn scent that lingers even after three cycles through the dishwasher. Glass keeps the flavors clean and pristine.

It will keep beautifully in the refrigerator for up to four days.

Because we are serving this cold, there is absolutely no reheating required. Just give it a vigorous toss with a spoon to redistribute the settled dressing before you dive in.

Ingredient Substitutes

If you find yourself missing an ingredient or want to customize this salad to your personal taste, these simple swaps work beautifully without compromising the integrity of the dish:

1. The Pasta: If radiatori is sold out, grab a box of fusilli or rotini to keep those sauce-catching ridges.
2. The Cheese: Swap the feta for fresh mini mozzarella pearls if you prefer a milder, creamier bite.
3. The Acid: Lemon juice can easily replace the red wine vinegar for a brighter, sunnier citrus note.
4. The Greens: Toss in a handful of baby arugula just before serving for a peppery kick.

I hope this brings a little bit of stress-free joy to your next sunny gathering, or even just a quiet Tuesday lunch at your desk. Let me know how it turns out, and don't forget to salt that pasta water like the sea!