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This Pasta Salad with Broccoli, Carrots, and Pepper Jack Cheese features a delightful mix of cooked pasta, fresh veggies, and zesty Pepper Jack cheese, all brought together with a creamy buttermilk dressing for an explosion of flavor.

A bowl and two small dishes of Pasta Salad with Broccoli, Carrots, red onion, and PepperJack Cheese cubes, all tossed in dressing on a wooden table next to a wooden spoon and checkered cloth.
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Why You’ll 🫶🏻 this Pasta Salad

This pasta salad is the ideal creamy-and-crunchy option for dinners, potlucks, and summer cookouts. Featuring tender pasta, fresh broccoli, cheddar cheese, and a delicious creamy dressing, it’s sure to become a family favorite. Plus, it’s simple to prepare, customizable, and perfect for making in advance. Enjoy! ~Nicole

Key Ingredients for Pasta Salad with Broccoli, Carrots, and Pepper Jack Cheese

A variety of ingredients are arranged on a counter for Pasta Salad with Broccoli and Carrots: a red onion, parsley, broccoli, shredded carrots, cubed PepperJack Cheese, rotini pasta, garlic, sunflower seeds, lemon, salt, sour cream, oil, and a wooden cutting board.

Rotini is a type of small pasta shape that usually measures 1 inch in length uncooked.

Broccoli is a hearty and nutritious vegetable. The florets are lightly blanched in this recipe, giving it a crisp texture and vibrant color.

Carrots are also a nutritious vegetable. I use lightly blanched, matchstick-cut carrots that add sweet flavor, crisp texture, and bright color.

Pepper Jack Cheese adds a creamy texture and mild heat.

Sunflower Seeds add a nutty, nutritious flavor and crunch.

Red Onion adds a sweet, mild onion flavor and a pop of color.

Flat-Leaf Parsley adds color and a fresh, almost lemony, herbal flavor.

Buttermilk adds a tangy flavor to the dressing, making it pourable.

Mayonnaise adds a rich flavor and creamy texture.

Greek Yogurt adds a light, nutritious quality and a creamy texture.

Sour Cream adds a rich, tangy flavor and creamy texture that helps emulsify the dressing along with the mayonnaise and Greek yogurt.

Garlic adds a bold, savory flavor that, when used raw in a dressing, has a little kick.

Lemon Juice adds a bright, zesty flavor that helps balance the dressing’s overall profile.

Equipment Needed

Tips for Making Pasta Salad with Broccoli, Carrots, and Pepper Jack Cheese

  1. To prep the broccoli, remove the florets and cut them into bite-sized pieces. To peel the stalk, use a pairing knife to slip it under the thick outer skin, then peel it with one gentle pull. That reveals the tender flesh, which I consider the best part of the broccoli. Once peeled, dice it into ¼-inch thick slices/coins. An even easier way to prep the broccoli is to buy a 1-pound bag of florets and cut them into bite-size pieces (no peeling of stalk required.) 😉🥦
  2. In a small bowl, whisk together all of the ingredients. Refrigerate until ready to toss with the pasta. (Dressing can be made and refrigerated for up to 3 days in advance.)
  3. Next, bring 1 gallon of water to a boil in a large pasta pot. Add salt and pasta, and cook until just tender, adding broccoli and carrots for the last minute of cooking. Drain the pasta, broccoli, and carrots, and spread them out on a rimmed baking sheet or even two if you need to cool them quickly. Let cool to room temperature. Letting them cool to room temperature is a key step. If you add the other ingredients to hot pasta, it will absorb the creamy dressing, and essentially cook the red onion, which is not good eats. I recommend that once the pasta mixture is at room temperature, you transfer the rimmed baking sheet to the refrigerator to cool further, or transfer the pasta mixture to a large bowl and refrigerate it.
  4. For the red onion, once you cut it in half, you should be able to tell if it has a strong odor, which would make for a strong taste. If that is the case, dice the onion half along the lines of the petals, then cut again perpendicular to those lines towards the root for an even dice. Then soak the strong onion in cold water for a few minutes. Drain through a fine-mesh sieve and dry on paper towels. This is a great tip if you know you will be keeping the salad in the refrigerator for several days.
  5. Transfer the cooled pasta mixture to a large bowl (if it’s not in one already- see tip #3), and add the cheese, sunflower seeds, red onion, and parsley. (Pasta salad can be covered with plastic wrap and refrigerated for up to 2 hours.) When ready to serve, add the creamy dressing, toss to coat, and let stand for 15 minutes. Remember to season well with kosher salt and freshly ground black pepper!
A close-up of Pasta Salad with Broccoli in glass bowls, featuring rotini pasta, carrots, red onion, PepperJack cheese cubes, sunflower seeds, and herbs in a creamy dressing. A wooden spoon and napkin are nearby.

Substitutions

  • Substitute another bite-sized pasta shape for the rotini.
  • Use whole wheat pasta for a healthier alternative.
  • Substitute cauliflower or sliced cherry tomatoes (they do not have to be cooked with the pasta) for the broccoli.
  • Substitute Colby-Jack, Cheddar, Monterey Jack, or Swiss for the Pepper Jack.
  • Substitute toasted almonds or pumpkin seeds for the sunflower seeds.
  • Use shallots or green onions instead of the red onion.
  • Adjust the amounts of mayonnaise, Greek yogurt, and sour cream to suit your diet and palate.
  • Substitute rice wine vinegar or white wine vinegar for the lemon juice.

Serving Suggestions

Pasta salads are excellent dishes to prepare for potlucks, barbecues, or pasta parties. They can be served as a main dish or as a side to many other dishes. Here are some ideas.

You can also add leftover grilled chicken or diced ham, but remember to increase the dressing amount, since the dressing-to-pasta salad ratio will be off, which can make the salad drier.

A glass bowl of Pasta Salad with Broccoli, carrots, and PepperJack cheese cubes is lightly coated in a creamy dressing. A wooden spoon and a napkin sit nearby on the rustic wooden table.
Can I make this ahead of time?

Absolutely! The flavors will develop if you make it several hours or up to one day before serving.

Can I use gluten-free pasta?

Yes. You can substitute flours made from quinoa, rice, or legumes for the semolina pasta.

Can I freeze the pasta salad?

That’s a tricky one. Freezing the pasta salad that has already been tossed with the dressing is not recommended. You can freeze the undressed salad for up to 3 months. While the pasta thaws, make a fresh batch of dressing.
Note- if you substitute cherry tomatoes or want to add them, add them after the pasta has thawed.

Other pasta salads you may enjoy…

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Pasta Salad with Broccoli, Carrots, and PepperJack Cheese

By Nicole
Prep: 25 minutes
Cook: 12 minutes
Cool Time: 25 minutes
Total: 1 hour 2 minutes
Servings: 8 as main dish
This Pasta Salad with Broccoli, Carrots, and PepperJack Cheese is the ideal creamy-and-crunchy option for dinners, potlucks, and summer cookouts.

Ingredients 

For the Creamy Dressing

  • 1 large garlic clove, finely grated on a Microplane
  • 2 tablespoons plus 2 teaspoons mayonnaise
  • 2 tablespoons plus 2 teaspoons plain Greek yogurt, 0%-5%
  • cup sour cream, regular or light
  • 3 tablespoons freshly squeezed lemon juice

For the Pasta Salad

  • 1 tablespoon kosher salt
  • 1 gallon of water
  • 1 pound rotini pasta
  • 1 pound broccoli crowns, cut into bite-size florets, and stems peeled and cut into ¼-inch thick coins
  • 8 ounces matchstick carrots
  • 8 ounces pepper jack cheese, cut into ½-inch dice
  • ¼ cup roasted and lightly salted sunflower seeds
  • ½ medium red onion, cut into small dice
  • 3 tablespoons minced fresh flat-leaf parsley
  • Kosher salt and freshly ground black pepper to taste

Instructions 

For the Creamy Dressing

  • In a small bowl, whisk together all of the ingredients. Refrigerate until ready to toss with the pasta. (Dressing can be made and refrigerated for up to 3 days in advance.)

For the Pasta Salad

  • Bring 1 gallon of water to a boil in a large pasta pot. Add salt and pasta, and cook until just tender, adding broccoli and carrots for the last minute of cooking. Drain the pasta, broccoli, and carrots, and spread them out on a rimmed baking sheet. Let cool to room temperature.
  • Transfer the cooled pasta mixture to a large bowl, and add the cheese, sunflower seeds, red onion, and parsley. (Pasta salad can be covered with plastic wrap and refrigerated for up to 2 hours.) When ready to serve, add the creamy dressing, toss to coat, and let stand for 15 minutes. Season to taste with kosher salt and freshly ground black pepper. Enjoy!.

Notes

  • Serves 8 as a main dish or 12-16 as a side dish.
  • Dressing can be made and refrigerated for up to 3 days in advance.
  • Leftover pasta salad can be stored in an airtight container in the refrigerator for about 4 to 5 days.
  • Pasta salad can be prepared in advance, as letting it sit for a few minutes or overnight can enhance the flavors.
  • You can freeze the undressed salad for up to 3 months. While the pasta thaws, make a fresh batch of dressing.
    Note- if you substitute cherry tomatoes or want to add them, add them after the pasta has thawed. Otherwise, their texture will change if frozen.

Nutrition

Calories: 571kcal, Carbohydrates: 69g, Protein: 30g, Fat: 20g, Saturated Fat: 9g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 6g, Trans Fat: 0.01g, Cholesterol: 45mg, Sodium: 1799mg, Potassium: 974mg, Fiber: 5g, Sugar: 12g, Vitamin A: 5511IU, Vitamin C: 58mg, Calcium: 297mg, Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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