This is a creamy pasta salad built around blanched broccoli, sharp cheddar cubes, and a mayo-yogurt dressing sharpened with apple cider vinegar and Dijon. It comes together in about 40 minutes and holds up well enough to feed a crowd without falling apart on the table. The cheddar and toasted sunflower seeds add enough protein and staying power to make it a real lunch, not just a side.
What makes this version work
Two things separate this from a mediocre pasta salad. First, the dressing uses both mayonnaise and Greek yogurt โ the yogurt thins the mayo just enough so it actually coats the pasta instead of clumping, and the acidity from the vinegar keeps the whole thing from tasting flat. Second, the broccoli is blanched rather than raw. Raw broccoli in a cold salad can taste harsh and stays slippery, so dressing never clings to it properly. A quick blanch softens the cell walls just enough that the dressing sticks and the florets donโt fight you on the fork โ but the broccoli still has snap, which matters for texture against the soft pasta.
Common problems and fixes
- Dressing tastes flat after chilling: Cold mutes salt and acid. Taste the salad again right before serving and add a small splash of apple cider vinegar and a pinch of salt โ this takes 10 seconds and makes a noticeable difference.
- Pasta absorbs all the dressing overnight: Short pasta soaks up dressing as it sits. If youโre making this more than a few hours ahead, hold back about a third of the dressing and stir it in just before serving to bring the creaminess back.
- Cheddar cubes sweat and turn greasy: This happens when the pasta is still warm when you add the cheese. Make sure the pasta is fully cooled โ room temperature at minimum โ before folding in the cheddar.
- Sunflower seeds go soft: Add toasted seeds at the very end, right before serving. Dress it at the table โ a pre-dressed salad goes limp fast, and the seeds suffer most.
- Red onion flavor is too sharp: The recipe calls for a brief rinse, but if your onion is particularly pungent, soak the diced pieces in cold water for 5 minutes, then drain and pat dry before adding.
Make-ahead notes
You can prep every component up to 24 hours ahead and store them separately in the fridge: cooked and cooled pasta (toss with a tiny drizzle of neutral oil to prevent sticking), blanched broccoli, diced cheddar, sliced celery, rinsed onion, and the dressing in a jar. Combine everything except the sunflower seeds and fresh herbs up to 4 hours before serving โ this gives the flavors time to come together without the pasta turning to mush. If the salad has been sitting overnight fully assembled, stir in the reserved dressing portion and re-season before it hits the table. Toasted sunflower seeds and chopped chives go on last. The assembled salad keeps reasonably well for up to 2 days refrigerated, though the broccoli will soften slightly by day two.
Cheddar Broccoli Pasta Salad
Equipment
- Rimmed sheet pan
- Oven
- Large pot
- Colander
- Large mixing bowl
- Small bowl
- Whisk
- Measuring cups and spoons
- Chef's Knife
- Cutting board
Ingredients
- ยผ cup raw sunflower seeds for toasting
- โ cup mayonnaise full-fat for best texture
- โ cup plain Greek yogurt 2% or whole milk
- 2 tablespoons apple cider vinegar
- 1 tablespoon Dijon mustard
- 2 teaspoons honey to balance acidity
- 1 clove garlic, finely grated
- ยผ teaspoon celery seed optional
- ยฝ teaspoon kosher salt for dressing
- ยผ teaspoon freshly ground black pepper for dressing
- 1 tablespoon kosher salt for pasta water
- 8 ounces short pasta small shells or rotini
- 3 cups small broccoli florets cut to 1-inch pieces
- ยฝ cup thinly sliced celery about 2 ribs
- ยฝ cup finely diced red onion rinsed briefly to mellow
- 1 cup sharp cheddar cheese, cut into 1/4-inch cubes or use thick-shredded
- 2 tablespoons chopped fresh chives or flat-leaf parsley for garnish
Instructions
- Toast the Sunflower Seeds: Preheat the oven to 350ยฐF / 175ยฐC. Spread the sunflower seeds on a rimmed sheet pan and toast until lightly golden and fragrant, 7โ9 minutes. Cool on the pan; the residual heat will finish the toast.
- Whisk the Dressing: In a small bowl, whisk together mayonnaise, Greek yogurt, apple cider vinegar, Dijon, honey, garlic, celery seed (if using), salt, and pepper until smooth and emulsified, about 30โ45 seconds. Set aside to let the flavors bloom.
- Cook the Pasta: Bring a large pot of water to a rolling boil. Stir in 1 tablespoon kosher salt, add the pasta, and cook until al dente, 9โ11 minutes (check package). Drain well in a colander.
- Blanch the Broccoli: Return the pot of water to a boil. Add the broccoli florets and blanch until bright green and crisp-tender, about 2 minutes. Transfer immediately to an ice bath to stop the cooking, then drain thoroughly.
- Assemble the Salad: In a large mixing bowl, combine the drained pasta, broccoli, celery, red onion, and cheddar. Pour in the dressing and toss gently with a spatula until every bite is coated and glossy.
- Season and Add Crunch: Fold in half of the toasted sunflower seeds, reserving the rest for garnish. Taste and adjust seasoning with additional salt or pepper if needed.
- Chill: Cover and refrigerate for 10 minutes to let the flavors marry and the dressing set. This brief rest keeps the broccoli snappy and the pasta plush.
- Finish and Serve: Top with the remaining sunflower seeds and shower with chives or parsley. Serve coolโnot icy coldโso the cheddarโs aroma and the dressingโs tang can shine.
Notes
Chefโs Tips:
- Cut for Uniform Bites: Keep broccoli florets around 1 inch and cheddar at 1/4 inch so textures balance and every forkful eats cleanly.
- Salt the Water Like the Sea: Seasoned pasta is the backbone of flavor in cold salads; donโt skip the full tablespoon of kosher salt.
- Rinse the Onion: A quick rinse under cold water softens raw sharpness without muting color.
- Make-Ahead: Toss with 3/4 of the dressing, chill up to 24 hours, then loosen with the remaining dressing before serving.
- Storage: Keeps well, covered and refrigerated, for up to 3 days. Refresh with a splash of vinegar and a spoon of yogurt if it tightens.
Frequently asked questions
Can I add chicken to make this a more filling meal?
Yes โ diced rotisserie chicken works best here. Add about 1 to 1.5 cups of shredded or chopped cooked chicken when you fold in the cheddar, and the salad becomes a complete meal with a solid protein hit per serving.
Can I use shredded cheddar instead of cubed?
You can, and the recipe notes it as an option. Cubed cheddar holds its shape and gives you distinct pockets of flavor; shredded cheddar blends into the dressing more and can clump. If you use shredded, add it last and toss gently.
What pasta shape works best?
Small shells or rotini are ideal because their curves and ridges trap the creamy dressing. Avoid long pasta or large shapes โ they donโt distribute evenly and make the salad awkward to serve.
Is there a substitute for sunflower seeds if I have a seed allergy?
Toasted pepitas work well and have a similar nutty flavor. Roasted chickpeas are a good nut- and seed-free option that also adds protein โ use about the same volume and add them right before serving so they stay crisp.
Can I make this without mayonnaise?
You can replace the mayo entirely with full-fat Greek yogurt, but the dressing will be noticeably tangier and thinner. A better swap is a good vegan mayo, which keeps the texture close to the original.
How do I keep the broccoli bright green after blanching?
Transfer the blanched florets immediately to a bowl of ice water and let them sit for 2 minutes, then drain and pat dry. Skipping this step lets carryover heat continue cooking the broccoli, which turns it dull and slightly yellow by the time the salad is served.